[PATCH 0/5] perf kmem: Add more functions and show more statistics

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* [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  5:25 ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:25 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

List of new things:

- Add option "--raw-ip", to print raw ip instead of symbols.

- Sort the output by fragmentation by default, and support
  multi keys.

- Collect and show cross node allocation stats.

- Collect and show alloc/free ping-pong stats.

- And help file.

---
 tools/perf/Documentation/perf-kmem.txt |   44 ++++
 tools/perf/builtin-kmem.c              |  353 ++++++++++++++++++++++++++------
 tools/perf/command-list.txt            |    1 +
 3 files changed, 331 insertions(+), 67 deletions(-)

Pekka, do you think we can remove kmemtrace now?

With kmem trace events, low-level analyzing can be done using
ftrace, and high-level analyzing can be done using perf-kmem.

And chance is, more people may use and improve perf-kmem, and it
will be well-maintained within the perf infrastructure. On the
other hand, I guess few people use and contribute to kmemtrace-user.

BTW, seems kmemtrace-user doesn't work with ftrace. I got setfault:

	# ./kmemtraced
	Copying /proc/kallsyms...
	Logging... Press Control-C to stop.
	^CSegmentation fault

^ permalink raw reply	[flat|nested] 53+ messages in thread

* [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  5:25 ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:25 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

List of new things:

- Add option "--raw-ip", to print raw ip instead of symbols.

- Sort the output by fragmentation by default, and support
  multi keys.

- Collect and show cross node allocation stats.

- Collect and show alloc/free ping-pong stats.

- And help file.

---
 tools/perf/Documentation/perf-kmem.txt |   44 ++++
 tools/perf/builtin-kmem.c              |  353 ++++++++++++++++++++++++++------
 tools/perf/command-list.txt            |    1 +
 3 files changed, 331 insertions(+), 67 deletions(-)


Pekka, do you think we can remove kmemtrace now?

With kmem trace events, low-level analyzing can be done using
ftrace, and high-level analyzing can be done using perf-kmem.

And chance is, more people may use and improve perf-kmem, and it
will be well-maintained within the perf infrastructure. On the
other hand, I guess few people use and contribute to kmemtrace-user.

BTW, seems kmemtrace-user doesn't work with ftrace. I got setfault:

	# ./kmemtraced
	Copying /proc/kallsyms...
	Logging... Press Control-C to stop.
	^CSegmentation fault


--
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^ permalink raw reply	[flat|nested] 53+ messages in thread

* [PATCH 1/5] perf kmem: Add new option to show raw ip
  2009-11-24  5:25 ` Li Zefan
@ 2009-11-24  5:25   ` Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:25 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Add option "--raw-ip" to show raw ip instead of symbols:

 # ./perf kmem --stat caller --raw-ip
 ------------------------------------------------------------------------------
 Callsite                    |Total_alloc/Per | Total_req/Per | Hit  | Frag
 ------------------------------------------------------------------------------
 0xc05301aa                  |  733184/4096   |  733184/4096  |   179|   0.000%
 0xc0542ba0                  |  483328/4096   |  483328/4096  |   118|   0.000%
 ...

Also show symbols with format sym+offset instead of sym/offset.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/builtin-kmem.c |   18 ++++++++++--------
 1 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 256d18f..1ef43c2 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -32,15 +32,14 @@ sort_fn_t			caller_sort_fn;
 static int			alloc_lines = -1;
 static int			caller_lines = -1;
 
+static bool			raw_ip;
+
 static char			*cwd;
 static int			cwdlen;
 
 struct alloc_stat {
 	union {
-		struct {
-			char	*name;
-			u64	call_site;
-		};
+		u64	call_site;
 		u64	ptr;
 	};
 	u64	bytes_req;
@@ -323,12 +322,14 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 
 		if (is_caller) {
 			addr = data->call_site;
-			sym = kernel_maps__find_symbol(addr, NULL, NULL);
+			if (!raw_ip)
+				sym = kernel_maps__find_symbol(addr,
+							       NULL, NULL);
 		} else
 			addr = data->ptr;
 
 		if (sym != NULL)
-			snprintf(bf, sizeof(bf), "%s/%Lx", sym->name,
+			snprintf(bf, sizeof(bf), "%s+%Lx", sym->name,
 				 addr - sym->start);
 		else
 			snprintf(bf, sizeof(bf), "%#Lx", addr);
@@ -345,9 +346,9 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 	}
 
 	if (n_lines == -1)
-		printf(" ...               | ...             | ...             | ...    | ...   \n");
+		printf(" ...                        | ...            | ...           | ...    | ...   \n");
 
-	printf(" ------------------------------------------------------------------------------\n");
+	printf("%.78s\n", graph_dotted_line);
 }
 
 static void print_summary(void)
@@ -558,6 +559,7 @@ static const struct option kmem_options[] = {
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
 		     parse_line_opt),
+	OPT_BOOLEAN(0, "raw-ip", &raw_ip, "show raw ip instead of symbol"),
 	OPT_END()
 };
 
-- 
1.6.3


^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [PATCH 1/5] perf kmem: Add new option to show raw ip
@ 2009-11-24  5:25   ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:25 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Add option "--raw-ip" to show raw ip instead of symbols:

 # ./perf kmem --stat caller --raw-ip
 ------------------------------------------------------------------------------
 Callsite                    |Total_alloc/Per | Total_req/Per | Hit  | Frag
 ------------------------------------------------------------------------------
 0xc05301aa                  |  733184/4096   |  733184/4096  |   179|   0.000%
 0xc0542ba0                  |  483328/4096   |  483328/4096  |   118|   0.000%
 ...

Also show symbols with format sym+offset instead of sym/offset.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/builtin-kmem.c |   18 ++++++++++--------
 1 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 256d18f..1ef43c2 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -32,15 +32,14 @@ sort_fn_t			caller_sort_fn;
 static int			alloc_lines = -1;
 static int			caller_lines = -1;
 
+static bool			raw_ip;
+
 static char			*cwd;
 static int			cwdlen;
 
 struct alloc_stat {
 	union {
-		struct {
-			char	*name;
-			u64	call_site;
-		};
+		u64	call_site;
 		u64	ptr;
 	};
 	u64	bytes_req;
@@ -323,12 +322,14 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 
 		if (is_caller) {
 			addr = data->call_site;
-			sym = kernel_maps__find_symbol(addr, NULL, NULL);
+			if (!raw_ip)
+				sym = kernel_maps__find_symbol(addr,
+							       NULL, NULL);
 		} else
 			addr = data->ptr;
 
 		if (sym != NULL)
-			snprintf(bf, sizeof(bf), "%s/%Lx", sym->name,
+			snprintf(bf, sizeof(bf), "%s+%Lx", sym->name,
 				 addr - sym->start);
 		else
 			snprintf(bf, sizeof(bf), "%#Lx", addr);
@@ -345,9 +346,9 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 	}
 
 	if (n_lines == -1)
-		printf(" ...               | ...             | ...             | ...    | ...   \n");
+		printf(" ...                        | ...            | ...           | ...    | ...   \n");
 
-	printf(" ------------------------------------------------------------------------------\n");
+	printf("%.78s\n", graph_dotted_line);
 }
 
 static void print_summary(void)
@@ -558,6 +559,7 @@ static const struct option kmem_options[] = {
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
 		     parse_line_opt),
+	OPT_BOOLEAN(0, "raw-ip", &raw_ip, "show raw ip instead of symbol"),
 	OPT_END()
 };
 
-- 
1.6.3

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* [tip:perf/core] perf kmem: Add new option to show raw ip
  2009-11-24  5:25   ` Li Zefan
@ 2009-11-24 16:54     ` tip-bot for Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:54 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  7707b6b6f8d9188b612f9fc88c65411264b1ed57
Gitweb:     http://git.kernel.org/tip/7707b6b6f8d9188b612f9fc88c65411264b1ed57
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:25:48 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:49 +0100

perf kmem: Add new option to show raw ip

Add option "--raw-ip" to show raw ip instead of symbols:

 # ./perf kmem --stat caller --raw-ip
 ------------------------------------------------------------------------------
 Callsite                    |Total_alloc/Per | Total_req/Per | Hit  | Frag
 ------------------------------------------------------------------------------
 0xc05301aa                  |  733184/4096   |  733184/4096  |   179|   0.000%
 0xc0542ba0                  |  483328/4096   |  483328/4096  |   118|   0.000%
 ...

Also show symbols with format sym+offset instead of sym/offset.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6E5C.4080900@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-kmem.c |   18 ++++++++++--------
 1 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 256d18f..1ef43c2 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -32,15 +32,14 @@ sort_fn_t			caller_sort_fn;
 static int			alloc_lines = -1;
 static int			caller_lines = -1;
 
+static bool			raw_ip;
+
 static char			*cwd;
 static int			cwdlen;
 
 struct alloc_stat {
 	union {
-		struct {
-			char	*name;
-			u64	call_site;
-		};
+		u64	call_site;
 		u64	ptr;
 	};
 	u64	bytes_req;
@@ -323,12 +322,14 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 
 		if (is_caller) {
 			addr = data->call_site;
-			sym = kernel_maps__find_symbol(addr, NULL, NULL);
+			if (!raw_ip)
+				sym = kernel_maps__find_symbol(addr,
+							       NULL, NULL);
 		} else
 			addr = data->ptr;
 
 		if (sym != NULL)
-			snprintf(bf, sizeof(bf), "%s/%Lx", sym->name,
+			snprintf(bf, sizeof(bf), "%s+%Lx", sym->name,
 				 addr - sym->start);
 		else
 			snprintf(bf, sizeof(bf), "%#Lx", addr);
@@ -345,9 +346,9 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 	}
 
 	if (n_lines == -1)
-		printf(" ...               | ...             | ...             | ...    | ...   \n");
+		printf(" ...                        | ...            | ...           | ...    | ...   \n");
 
-	printf(" ------------------------------------------------------------------------------\n");
+	printf("%.78s\n", graph_dotted_line);
 }
 
 static void print_summary(void)
@@ -558,6 +559,7 @@ static const struct option kmem_options[] = {
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
 		     parse_line_opt),
+	OPT_BOOLEAN(0, "raw-ip", &raw_ip, "show raw ip instead of symbol"),
 	OPT_END()
 };
 

^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf kmem: Add new option to show raw ip
@ 2009-11-24 16:54     ` tip-bot for Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:54 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  7707b6b6f8d9188b612f9fc88c65411264b1ed57
Gitweb:     http://git.kernel.org/tip/7707b6b6f8d9188b612f9fc88c65411264b1ed57
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:25:48 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:49 +0100

perf kmem: Add new option to show raw ip

Add option "--raw-ip" to show raw ip instead of symbols:

 # ./perf kmem --stat caller --raw-ip
 ------------------------------------------------------------------------------
 Callsite                    |Total_alloc/Per | Total_req/Per | Hit  | Frag
 ------------------------------------------------------------------------------
 0xc05301aa                  |  733184/4096   |  733184/4096  |   179|   0.000%
 0xc0542ba0                  |  483328/4096   |  483328/4096  |   118|   0.000%
 ...

Also show symbols with format sym+offset instead of sym/offset.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6E5C.4080900@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-kmem.c |   18 ++++++++++--------
 1 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 256d18f..1ef43c2 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -32,15 +32,14 @@ sort_fn_t			caller_sort_fn;
 static int			alloc_lines = -1;
 static int			caller_lines = -1;
 
+static bool			raw_ip;
+
 static char			*cwd;
 static int			cwdlen;
 
 struct alloc_stat {
 	union {
-		struct {
-			char	*name;
-			u64	call_site;
-		};
+		u64	call_site;
 		u64	ptr;
 	};
 	u64	bytes_req;
@@ -323,12 +322,14 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 
 		if (is_caller) {
 			addr = data->call_site;
-			sym = kernel_maps__find_symbol(addr, NULL, NULL);
+			if (!raw_ip)
+				sym = kernel_maps__find_symbol(addr,
+							       NULL, NULL);
 		} else
 			addr = data->ptr;
 
 		if (sym != NULL)
-			snprintf(bf, sizeof(bf), "%s/%Lx", sym->name,
+			snprintf(bf, sizeof(bf), "%s+%Lx", sym->name,
 				 addr - sym->start);
 		else
 			snprintf(bf, sizeof(bf), "%#Lx", addr);
@@ -345,9 +346,9 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 	}
 
 	if (n_lines == -1)
-		printf(" ...               | ...             | ...             | ...    | ...   \n");
+		printf(" ...                        | ...            | ...           | ...    | ...   \n");
 
-	printf(" ------------------------------------------------------------------------------\n");
+	printf("%.78s\n", graph_dotted_line);
 }
 
 static void print_summary(void)
@@ -558,6 +559,7 @@ static const struct option kmem_options[] = {
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
 		     parse_line_opt),
+	OPT_BOOLEAN(0, "raw-ip", &raw_ip, "show raw ip instead of symbol"),
 	OPT_END()
 };
 

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [PATCH 2/5] perf kmem: Default to sort by fragmentation
  2009-11-24  5:25 ` Li Zefan
@ 2009-11-24  5:26   ` Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:26 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Make the output sort by fragmentation by default.

Also make the usage of "--sort" option consistent with other perf
tools. That is, we support multi keys: "--sort key1[,key2]...".

 # ./perf kmem --stat caller
 ------------------------------------------------------------------------------
 Callsite                    |Total_alloc/Per | Total_req/Per | Hit  | Frag
 ------------------------------------------------------------------------------
 __netdev_alloc_skb+23       |    5048/1682   |    4564/1521  |     3|   9.588%
 perf_event_alloc.clone.0+0  |    7504/682    |    7128/648   |    11|   5.011%
 tracepoint_add_probe+32e    |     157/31     |     154/30    |     5|   1.911%
 alloc_buffer_head+16        |     456/57     |     448/56    |     8|   1.754%
 radix_tree_preload+51       |     584/292    |     576/288   |     2|   1.370%
 ...

TODO:
- Extract duplicate code in builtin-kmem.c and builtin-sched.c
  into util/sort.c.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/builtin-kmem.c |  142 ++++++++++++++++++++++++++++++++++-----------
 1 files changed, 108 insertions(+), 34 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1ef43c2..dc86f1e 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -26,14 +26,13 @@ static u64			sample_type;
 static int			alloc_flag;
 static int			caller_flag;
 
-sort_fn_t			alloc_sort_fn;
-sort_fn_t			caller_sort_fn;
-
 static int			alloc_lines = -1;
 static int			caller_lines = -1;
 
 static bool			raw_ip;
 
+static char			default_sort_order[] = "frag,hit,bytes";
+
 static char			*cwd;
 static int			cwdlen;
 
@@ -371,20 +370,34 @@ static void print_result(void)
 	print_summary();
 }
 
+struct sort_dimension {
+	const char		name[20];
+	sort_fn_t		cmp;
+	struct list_head	list;
+};
+
+static LIST_HEAD(caller_sort);
+static LIST_HEAD(alloc_sort);
+
 static void sort_insert(struct rb_root *root, struct alloc_stat *data,
-			sort_fn_t sort_fn)
+			struct list_head *sort_list)
 {
 	struct rb_node **new = &(root->rb_node);
 	struct rb_node *parent = NULL;
+	struct sort_dimension *sort;
 
 	while (*new) {
 		struct alloc_stat *this;
-		int cmp;
+		int cmp = 0;
 
 		this = rb_entry(*new, struct alloc_stat, node);
 		parent = *new;
 
-		cmp = sort_fn(data, this);
+		list_for_each_entry(sort, sort_list, list) {
+			cmp = sort->cmp(data, this);
+			if (cmp)
+				break;
+		}
 
 		if (cmp > 0)
 			new = &((*new)->rb_left);
@@ -397,7 +410,7 @@ static void sort_insert(struct rb_root *root, struct alloc_stat *data,
 }
 
 static void __sort_result(struct rb_root *root, struct rb_root *root_sorted,
-			  sort_fn_t sort_fn)
+			  struct list_head *sort_list)
 {
 	struct rb_node *node;
 	struct alloc_stat *data;
@@ -409,14 +422,14 @@ static void __sort_result(struct rb_root *root, struct rb_root *root_sorted,
 
 		rb_erase(node, root);
 		data = rb_entry(node, struct alloc_stat, node);
-		sort_insert(root_sorted, data, sort_fn);
+		sort_insert(root_sorted, data, sort_list);
 	}
 }
 
 static void sort_result(void)
 {
-	__sort_result(&root_alloc_stat, &root_alloc_sorted, alloc_sort_fn);
-	__sort_result(&root_caller_stat, &root_caller_sorted, caller_sort_fn);
+	__sort_result(&root_alloc_stat, &root_alloc_sorted, &alloc_sort);
+	__sort_result(&root_caller_stat, &root_caller_sorted, &caller_sort);
 }
 
 static int __cmd_kmem(void)
@@ -434,7 +447,6 @@ static const char * const kmem_usage[] = {
 	NULL
 };
 
-
 static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->ptr < r->ptr)
@@ -444,6 +456,11 @@ static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension ptr_sort_dimension = {
+	.name	= "ptr",
+	.cmp	= ptr_cmp,
+};
+
 static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->call_site < r->call_site)
@@ -453,6 +470,11 @@ static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension callsite_sort_dimension = {
+	.name	= "callsite",
+	.cmp	= callsite_cmp,
+};
+
 static int hit_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->hit < r->hit)
@@ -462,6 +484,11 @@ static int hit_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension hit_sort_dimension = {
+	.name	= "hit",
+	.cmp	= hit_cmp,
+};
+
 static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->bytes_alloc < r->bytes_alloc)
@@ -471,6 +498,11 @@ static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension bytes_sort_dimension = {
+	.name	= "bytes",
+	.cmp	= bytes_cmp,
+};
+
 static int frag_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	double x, y;
@@ -485,31 +517,73 @@ static int frag_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension frag_sort_dimension = {
+	.name	= "frag",
+	.cmp	= frag_cmp,
+};
+
+static struct sort_dimension *avail_sorts[] = {
+	&ptr_sort_dimension,
+	&callsite_sort_dimension,
+	&hit_sort_dimension,
+	&bytes_sort_dimension,
+	&frag_sort_dimension,
+};
+
+#define NUM_AVAIL_SORTS	\
+	(int)(sizeof(avail_sorts) / sizeof(struct sort_dimension *))
+
+static int sort_dimension__add(const char *tok, struct list_head *list)
+{
+	struct sort_dimension *sort;
+	int i;
+
+	for (i = 0; i < NUM_AVAIL_SORTS; i++) {
+		if (!strcmp(avail_sorts[i]->name, tok)) {
+			sort = malloc(sizeof(*sort));
+			if (!sort)
+				die("malloc");
+			memcpy(sort, avail_sorts[i], sizeof(*sort));
+			list_add_tail(&sort->list, list);
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+static int setup_sorting(struct list_head *sort_list, const char *arg)
+{
+	char *tok;
+	char *str = strdup(arg);
+
+	if (!str)
+		die("strdup");
+
+	while (true) {
+		tok = strsep(&str, ",");
+		if (!tok)
+			break;
+		if (sort_dimension__add(tok, sort_list) < 0) {
+			error("Unknown --sort key: '%s'", tok);
+			return -1;
+		}
+	}
+
+	free(str);
+	return 0;
+}
+
 static int parse_sort_opt(const struct option *opt __used,
 			  const char *arg, int unset __used)
 {
-	sort_fn_t sort_fn;
-
 	if (!arg)
 		return -1;
 
-	if (strcmp(arg, "ptr") == 0)
-		sort_fn = ptr_cmp;
-	else if (strcmp(arg, "call_site") == 0)
-		sort_fn = callsite_cmp;
-	else if (strcmp(arg, "hit") == 0)
-		sort_fn = hit_cmp;
-	else if (strcmp(arg, "bytes") == 0)
-		sort_fn = bytes_cmp;
-	else if (strcmp(arg, "frag") == 0)
-		sort_fn = frag_cmp;
-	else
-		return -1;
-
 	if (caller_flag > alloc_flag)
-		caller_sort_fn = sort_fn;
+		return setup_sorting(&caller_sort, arg);
 	else
-		alloc_sort_fn = sort_fn;
+		return setup_sorting(&alloc_sort, arg);
 
 	return 0;
 }
@@ -553,8 +627,8 @@ static const struct option kmem_options[] = {
 	OPT_CALLBACK(0, "stat", NULL, "<alloc>|<caller>",
 		     "stat selector, Pass 'alloc' or 'caller'.",
 		     parse_stat_opt),
-	OPT_CALLBACK('s', "sort", NULL, "key",
-		     "sort by key: ptr, call_site, hit, bytes, frag",
+	OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
+		     "sort by key(s): ptr, call_site, bytes, hit, frag",
 		     parse_sort_opt),
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
@@ -606,10 +680,10 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
 	else if (argc)
 		usage_with_options(kmem_usage, kmem_options);
 
-	if (!alloc_sort_fn)
-		alloc_sort_fn = bytes_cmp;
-	if (!caller_sort_fn)
-		caller_sort_fn = bytes_cmp;
+	if (list_empty(&caller_sort))
+		setup_sorting(&caller_sort, default_sort_order);
+	if (list_empty(&alloc_sort))
+		setup_sorting(&alloc_sort, default_sort_order);
 
 	return __cmd_kmem();
 }
-- 
1.6.3


^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [PATCH 2/5] perf kmem: Default to sort by fragmentation
@ 2009-11-24  5:26   ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:26 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Make the output sort by fragmentation by default.

Also make the usage of "--sort" option consistent with other perf
tools. That is, we support multi keys: "--sort key1[,key2]...".

 # ./perf kmem --stat caller
 ------------------------------------------------------------------------------
 Callsite                    |Total_alloc/Per | Total_req/Per | Hit  | Frag
 ------------------------------------------------------------------------------
 __netdev_alloc_skb+23       |    5048/1682   |    4564/1521  |     3|   9.588%
 perf_event_alloc.clone.0+0  |    7504/682    |    7128/648   |    11|   5.011%
 tracepoint_add_probe+32e    |     157/31     |     154/30    |     5|   1.911%
 alloc_buffer_head+16        |     456/57     |     448/56    |     8|   1.754%
 radix_tree_preload+51       |     584/292    |     576/288   |     2|   1.370%
 ...

TODO:
- Extract duplicate code in builtin-kmem.c and builtin-sched.c
  into util/sort.c.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/builtin-kmem.c |  142 ++++++++++++++++++++++++++++++++++-----------
 1 files changed, 108 insertions(+), 34 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1ef43c2..dc86f1e 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -26,14 +26,13 @@ static u64			sample_type;
 static int			alloc_flag;
 static int			caller_flag;
 
-sort_fn_t			alloc_sort_fn;
-sort_fn_t			caller_sort_fn;
-
 static int			alloc_lines = -1;
 static int			caller_lines = -1;
 
 static bool			raw_ip;
 
+static char			default_sort_order[] = "frag,hit,bytes";
+
 static char			*cwd;
 static int			cwdlen;
 
@@ -371,20 +370,34 @@ static void print_result(void)
 	print_summary();
 }
 
+struct sort_dimension {
+	const char		name[20];
+	sort_fn_t		cmp;
+	struct list_head	list;
+};
+
+static LIST_HEAD(caller_sort);
+static LIST_HEAD(alloc_sort);
+
 static void sort_insert(struct rb_root *root, struct alloc_stat *data,
-			sort_fn_t sort_fn)
+			struct list_head *sort_list)
 {
 	struct rb_node **new = &(root->rb_node);
 	struct rb_node *parent = NULL;
+	struct sort_dimension *sort;
 
 	while (*new) {
 		struct alloc_stat *this;
-		int cmp;
+		int cmp = 0;
 
 		this = rb_entry(*new, struct alloc_stat, node);
 		parent = *new;
 
-		cmp = sort_fn(data, this);
+		list_for_each_entry(sort, sort_list, list) {
+			cmp = sort->cmp(data, this);
+			if (cmp)
+				break;
+		}
 
 		if (cmp > 0)
 			new = &((*new)->rb_left);
@@ -397,7 +410,7 @@ static void sort_insert(struct rb_root *root, struct alloc_stat *data,
 }
 
 static void __sort_result(struct rb_root *root, struct rb_root *root_sorted,
-			  sort_fn_t sort_fn)
+			  struct list_head *sort_list)
 {
 	struct rb_node *node;
 	struct alloc_stat *data;
@@ -409,14 +422,14 @@ static void __sort_result(struct rb_root *root, struct rb_root *root_sorted,
 
 		rb_erase(node, root);
 		data = rb_entry(node, struct alloc_stat, node);
-		sort_insert(root_sorted, data, sort_fn);
+		sort_insert(root_sorted, data, sort_list);
 	}
 }
 
 static void sort_result(void)
 {
-	__sort_result(&root_alloc_stat, &root_alloc_sorted, alloc_sort_fn);
-	__sort_result(&root_caller_stat, &root_caller_sorted, caller_sort_fn);
+	__sort_result(&root_alloc_stat, &root_alloc_sorted, &alloc_sort);
+	__sort_result(&root_caller_stat, &root_caller_sorted, &caller_sort);
 }
 
 static int __cmd_kmem(void)
@@ -434,7 +447,6 @@ static const char * const kmem_usage[] = {
 	NULL
 };
 
-
 static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->ptr < r->ptr)
@@ -444,6 +456,11 @@ static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension ptr_sort_dimension = {
+	.name	= "ptr",
+	.cmp	= ptr_cmp,
+};
+
 static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->call_site < r->call_site)
@@ -453,6 +470,11 @@ static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension callsite_sort_dimension = {
+	.name	= "callsite",
+	.cmp	= callsite_cmp,
+};
+
 static int hit_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->hit < r->hit)
@@ -462,6 +484,11 @@ static int hit_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension hit_sort_dimension = {
+	.name	= "hit",
+	.cmp	= hit_cmp,
+};
+
 static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->bytes_alloc < r->bytes_alloc)
@@ -471,6 +498,11 @@ static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension bytes_sort_dimension = {
+	.name	= "bytes",
+	.cmp	= bytes_cmp,
+};
+
 static int frag_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	double x, y;
@@ -485,31 +517,73 @@ static int frag_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension frag_sort_dimension = {
+	.name	= "frag",
+	.cmp	= frag_cmp,
+};
+
+static struct sort_dimension *avail_sorts[] = {
+	&ptr_sort_dimension,
+	&callsite_sort_dimension,
+	&hit_sort_dimension,
+	&bytes_sort_dimension,
+	&frag_sort_dimension,
+};
+
+#define NUM_AVAIL_SORTS	\
+	(int)(sizeof(avail_sorts) / sizeof(struct sort_dimension *))
+
+static int sort_dimension__add(const char *tok, struct list_head *list)
+{
+	struct sort_dimension *sort;
+	int i;
+
+	for (i = 0; i < NUM_AVAIL_SORTS; i++) {
+		if (!strcmp(avail_sorts[i]->name, tok)) {
+			sort = malloc(sizeof(*sort));
+			if (!sort)
+				die("malloc");
+			memcpy(sort, avail_sorts[i], sizeof(*sort));
+			list_add_tail(&sort->list, list);
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+static int setup_sorting(struct list_head *sort_list, const char *arg)
+{
+	char *tok;
+	char *str = strdup(arg);
+
+	if (!str)
+		die("strdup");
+
+	while (true) {
+		tok = strsep(&str, ",");
+		if (!tok)
+			break;
+		if (sort_dimension__add(tok, sort_list) < 0) {
+			error("Unknown --sort key: '%s'", tok);
+			return -1;
+		}
+	}
+
+	free(str);
+	return 0;
+}
+
 static int parse_sort_opt(const struct option *opt __used,
 			  const char *arg, int unset __used)
 {
-	sort_fn_t sort_fn;
-
 	if (!arg)
 		return -1;
 
-	if (strcmp(arg, "ptr") == 0)
-		sort_fn = ptr_cmp;
-	else if (strcmp(arg, "call_site") == 0)
-		sort_fn = callsite_cmp;
-	else if (strcmp(arg, "hit") == 0)
-		sort_fn = hit_cmp;
-	else if (strcmp(arg, "bytes") == 0)
-		sort_fn = bytes_cmp;
-	else if (strcmp(arg, "frag") == 0)
-		sort_fn = frag_cmp;
-	else
-		return -1;
-
 	if (caller_flag > alloc_flag)
-		caller_sort_fn = sort_fn;
+		return setup_sorting(&caller_sort, arg);
 	else
-		alloc_sort_fn = sort_fn;
+		return setup_sorting(&alloc_sort, arg);
 
 	return 0;
 }
@@ -553,8 +627,8 @@ static const struct option kmem_options[] = {
 	OPT_CALLBACK(0, "stat", NULL, "<alloc>|<caller>",
 		     "stat selector, Pass 'alloc' or 'caller'.",
 		     parse_stat_opt),
-	OPT_CALLBACK('s', "sort", NULL, "key",
-		     "sort by key: ptr, call_site, hit, bytes, frag",
+	OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
+		     "sort by key(s): ptr, call_site, bytes, hit, frag",
 		     parse_sort_opt),
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
@@ -606,10 +680,10 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
 	else if (argc)
 		usage_with_options(kmem_usage, kmem_options);
 
-	if (!alloc_sort_fn)
-		alloc_sort_fn = bytes_cmp;
-	if (!caller_sort_fn)
-		caller_sort_fn = bytes_cmp;
+	if (list_empty(&caller_sort))
+		setup_sorting(&caller_sort, default_sort_order);
+	if (list_empty(&alloc_sort))
+		setup_sorting(&alloc_sort, default_sort_order);
 
 	return __cmd_kmem();
 }
-- 
1.6.3

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^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf kmem: Default to sort by fragmentation
  2009-11-24  5:26   ` Li Zefan
@ 2009-11-24 16:55     ` tip-bot for Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:55 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  29b3e15289eb66788a0bf5ea4903f9fbeb1ec751
Gitweb:     http://git.kernel.org/tip/29b3e15289eb66788a0bf5ea4903f9fbeb1ec751
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:26:10 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:49 +0100

perf kmem: Default to sort by fragmentation

Make the output sort by fragmentation by default.

Also make the usage of "--sort" option consistent with other
perf tools. That is, we support multi keys: "--sort
key1[,key2]...".

 # ./perf kmem --stat caller
 ------------------------------------------------------------------------------
 Callsite                    |Total_alloc/Per | Total_req/Per | Hit  | Frag
 ------------------------------------------------------------------------------
 __netdev_alloc_skb+23       |    5048/1682   |    4564/1521  |     3|   9.588%
 perf_event_alloc.clone.0+0  |    7504/682    |    7128/648   |    11|   5.011%
 tracepoint_add_probe+32e    |     157/31     |     154/30    |     5|   1.911%
 alloc_buffer_head+16        |     456/57     |     448/56    |     8|   1.754%
 radix_tree_preload+51       |     584/292    |     576/288   |     2|   1.370%
 ...

TODO:
- Extract duplicate code in builtin-kmem.c and builtin-sched.c
  into util/sort.c.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6E72.7010200@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-kmem.c |  142 ++++++++++++++++++++++++++++++++++-----------
 1 files changed, 108 insertions(+), 34 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1ef43c2..dc86f1e 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -26,14 +26,13 @@ static u64			sample_type;
 static int			alloc_flag;
 static int			caller_flag;
 
-sort_fn_t			alloc_sort_fn;
-sort_fn_t			caller_sort_fn;
-
 static int			alloc_lines = -1;
 static int			caller_lines = -1;
 
 static bool			raw_ip;
 
+static char			default_sort_order[] = "frag,hit,bytes";
+
 static char			*cwd;
 static int			cwdlen;
 
@@ -371,20 +370,34 @@ static void print_result(void)
 	print_summary();
 }
 
+struct sort_dimension {
+	const char		name[20];
+	sort_fn_t		cmp;
+	struct list_head	list;
+};
+
+static LIST_HEAD(caller_sort);
+static LIST_HEAD(alloc_sort);
+
 static void sort_insert(struct rb_root *root, struct alloc_stat *data,
-			sort_fn_t sort_fn)
+			struct list_head *sort_list)
 {
 	struct rb_node **new = &(root->rb_node);
 	struct rb_node *parent = NULL;
+	struct sort_dimension *sort;
 
 	while (*new) {
 		struct alloc_stat *this;
-		int cmp;
+		int cmp = 0;
 
 		this = rb_entry(*new, struct alloc_stat, node);
 		parent = *new;
 
-		cmp = sort_fn(data, this);
+		list_for_each_entry(sort, sort_list, list) {
+			cmp = sort->cmp(data, this);
+			if (cmp)
+				break;
+		}
 
 		if (cmp > 0)
 			new = &((*new)->rb_left);
@@ -397,7 +410,7 @@ static void sort_insert(struct rb_root *root, struct alloc_stat *data,
 }
 
 static void __sort_result(struct rb_root *root, struct rb_root *root_sorted,
-			  sort_fn_t sort_fn)
+			  struct list_head *sort_list)
 {
 	struct rb_node *node;
 	struct alloc_stat *data;
@@ -409,14 +422,14 @@ static void __sort_result(struct rb_root *root, struct rb_root *root_sorted,
 
 		rb_erase(node, root);
 		data = rb_entry(node, struct alloc_stat, node);
-		sort_insert(root_sorted, data, sort_fn);
+		sort_insert(root_sorted, data, sort_list);
 	}
 }
 
 static void sort_result(void)
 {
-	__sort_result(&root_alloc_stat, &root_alloc_sorted, alloc_sort_fn);
-	__sort_result(&root_caller_stat, &root_caller_sorted, caller_sort_fn);
+	__sort_result(&root_alloc_stat, &root_alloc_sorted, &alloc_sort);
+	__sort_result(&root_caller_stat, &root_caller_sorted, &caller_sort);
 }
 
 static int __cmd_kmem(void)
@@ -434,7 +447,6 @@ static const char * const kmem_usage[] = {
 	NULL
 };
 
-
 static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->ptr < r->ptr)
@@ -444,6 +456,11 @@ static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension ptr_sort_dimension = {
+	.name	= "ptr",
+	.cmp	= ptr_cmp,
+};
+
 static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->call_site < r->call_site)
@@ -453,6 +470,11 @@ static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension callsite_sort_dimension = {
+	.name	= "callsite",
+	.cmp	= callsite_cmp,
+};
+
 static int hit_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->hit < r->hit)
@@ -462,6 +484,11 @@ static int hit_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension hit_sort_dimension = {
+	.name	= "hit",
+	.cmp	= hit_cmp,
+};
+
 static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->bytes_alloc < r->bytes_alloc)
@@ -471,6 +498,11 @@ static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension bytes_sort_dimension = {
+	.name	= "bytes",
+	.cmp	= bytes_cmp,
+};
+
 static int frag_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	double x, y;
@@ -485,31 +517,73 @@ static int frag_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension frag_sort_dimension = {
+	.name	= "frag",
+	.cmp	= frag_cmp,
+};
+
+static struct sort_dimension *avail_sorts[] = {
+	&ptr_sort_dimension,
+	&callsite_sort_dimension,
+	&hit_sort_dimension,
+	&bytes_sort_dimension,
+	&frag_sort_dimension,
+};
+
+#define NUM_AVAIL_SORTS	\
+	(int)(sizeof(avail_sorts) / sizeof(struct sort_dimension *))
+
+static int sort_dimension__add(const char *tok, struct list_head *list)
+{
+	struct sort_dimension *sort;
+	int i;
+
+	for (i = 0; i < NUM_AVAIL_SORTS; i++) {
+		if (!strcmp(avail_sorts[i]->name, tok)) {
+			sort = malloc(sizeof(*sort));
+			if (!sort)
+				die("malloc");
+			memcpy(sort, avail_sorts[i], sizeof(*sort));
+			list_add_tail(&sort->list, list);
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+static int setup_sorting(struct list_head *sort_list, const char *arg)
+{
+	char *tok;
+	char *str = strdup(arg);
+
+	if (!str)
+		die("strdup");
+
+	while (true) {
+		tok = strsep(&str, ",");
+		if (!tok)
+			break;
+		if (sort_dimension__add(tok, sort_list) < 0) {
+			error("Unknown --sort key: '%s'", tok);
+			return -1;
+		}
+	}
+
+	free(str);
+	return 0;
+}
+
 static int parse_sort_opt(const struct option *opt __used,
 			  const char *arg, int unset __used)
 {
-	sort_fn_t sort_fn;
-
 	if (!arg)
 		return -1;
 
-	if (strcmp(arg, "ptr") == 0)
-		sort_fn = ptr_cmp;
-	else if (strcmp(arg, "call_site") == 0)
-		sort_fn = callsite_cmp;
-	else if (strcmp(arg, "hit") == 0)
-		sort_fn = hit_cmp;
-	else if (strcmp(arg, "bytes") == 0)
-		sort_fn = bytes_cmp;
-	else if (strcmp(arg, "frag") == 0)
-		sort_fn = frag_cmp;
-	else
-		return -1;
-
 	if (caller_flag > alloc_flag)
-		caller_sort_fn = sort_fn;
+		return setup_sorting(&caller_sort, arg);
 	else
-		alloc_sort_fn = sort_fn;
+		return setup_sorting(&alloc_sort, arg);
 
 	return 0;
 }
@@ -553,8 +627,8 @@ static const struct option kmem_options[] = {
 	OPT_CALLBACK(0, "stat", NULL, "<alloc>|<caller>",
 		     "stat selector, Pass 'alloc' or 'caller'.",
 		     parse_stat_opt),
-	OPT_CALLBACK('s', "sort", NULL, "key",
-		     "sort by key: ptr, call_site, hit, bytes, frag",
+	OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
+		     "sort by key(s): ptr, call_site, bytes, hit, frag",
 		     parse_sort_opt),
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
@@ -606,10 +680,10 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
 	else if (argc)
 		usage_with_options(kmem_usage, kmem_options);
 
-	if (!alloc_sort_fn)
-		alloc_sort_fn = bytes_cmp;
-	if (!caller_sort_fn)
-		caller_sort_fn = bytes_cmp;
+	if (list_empty(&caller_sort))
+		setup_sorting(&caller_sort, default_sort_order);
+	if (list_empty(&alloc_sort))
+		setup_sorting(&alloc_sort, default_sort_order);
 
 	return __cmd_kmem();
 }

^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf kmem: Default to sort by fragmentation
@ 2009-11-24 16:55     ` tip-bot for Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:55 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  29b3e15289eb66788a0bf5ea4903f9fbeb1ec751
Gitweb:     http://git.kernel.org/tip/29b3e15289eb66788a0bf5ea4903f9fbeb1ec751
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:26:10 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:49 +0100

perf kmem: Default to sort by fragmentation

Make the output sort by fragmentation by default.

Also make the usage of "--sort" option consistent with other
perf tools. That is, we support multi keys: "--sort
key1[,key2]...".

 # ./perf kmem --stat caller
 ------------------------------------------------------------------------------
 Callsite                    |Total_alloc/Per | Total_req/Per | Hit  | Frag
 ------------------------------------------------------------------------------
 __netdev_alloc_skb+23       |    5048/1682   |    4564/1521  |     3|   9.588%
 perf_event_alloc.clone.0+0  |    7504/682    |    7128/648   |    11|   5.011%
 tracepoint_add_probe+32e    |     157/31     |     154/30    |     5|   1.911%
 alloc_buffer_head+16        |     456/57     |     448/56    |     8|   1.754%
 radix_tree_preload+51       |     584/292    |     576/288   |     2|   1.370%
 ...

TODO:
- Extract duplicate code in builtin-kmem.c and builtin-sched.c
  into util/sort.c.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6E72.7010200@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-kmem.c |  142 ++++++++++++++++++++++++++++++++++-----------
 1 files changed, 108 insertions(+), 34 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1ef43c2..dc86f1e 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -26,14 +26,13 @@ static u64			sample_type;
 static int			alloc_flag;
 static int			caller_flag;
 
-sort_fn_t			alloc_sort_fn;
-sort_fn_t			caller_sort_fn;
-
 static int			alloc_lines = -1;
 static int			caller_lines = -1;
 
 static bool			raw_ip;
 
+static char			default_sort_order[] = "frag,hit,bytes";
+
 static char			*cwd;
 static int			cwdlen;
 
@@ -371,20 +370,34 @@ static void print_result(void)
 	print_summary();
 }
 
+struct sort_dimension {
+	const char		name[20];
+	sort_fn_t		cmp;
+	struct list_head	list;
+};
+
+static LIST_HEAD(caller_sort);
+static LIST_HEAD(alloc_sort);
+
 static void sort_insert(struct rb_root *root, struct alloc_stat *data,
-			sort_fn_t sort_fn)
+			struct list_head *sort_list)
 {
 	struct rb_node **new = &(root->rb_node);
 	struct rb_node *parent = NULL;
+	struct sort_dimension *sort;
 
 	while (*new) {
 		struct alloc_stat *this;
-		int cmp;
+		int cmp = 0;
 
 		this = rb_entry(*new, struct alloc_stat, node);
 		parent = *new;
 
-		cmp = sort_fn(data, this);
+		list_for_each_entry(sort, sort_list, list) {
+			cmp = sort->cmp(data, this);
+			if (cmp)
+				break;
+		}
 
 		if (cmp > 0)
 			new = &((*new)->rb_left);
@@ -397,7 +410,7 @@ static void sort_insert(struct rb_root *root, struct alloc_stat *data,
 }
 
 static void __sort_result(struct rb_root *root, struct rb_root *root_sorted,
-			  sort_fn_t sort_fn)
+			  struct list_head *sort_list)
 {
 	struct rb_node *node;
 	struct alloc_stat *data;
@@ -409,14 +422,14 @@ static void __sort_result(struct rb_root *root, struct rb_root *root_sorted,
 
 		rb_erase(node, root);
 		data = rb_entry(node, struct alloc_stat, node);
-		sort_insert(root_sorted, data, sort_fn);
+		sort_insert(root_sorted, data, sort_list);
 	}
 }
 
 static void sort_result(void)
 {
-	__sort_result(&root_alloc_stat, &root_alloc_sorted, alloc_sort_fn);
-	__sort_result(&root_caller_stat, &root_caller_sorted, caller_sort_fn);
+	__sort_result(&root_alloc_stat, &root_alloc_sorted, &alloc_sort);
+	__sort_result(&root_caller_stat, &root_caller_sorted, &caller_sort);
 }
 
 static int __cmd_kmem(void)
@@ -434,7 +447,6 @@ static const char * const kmem_usage[] = {
 	NULL
 };
 
-
 static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->ptr < r->ptr)
@@ -444,6 +456,11 @@ static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension ptr_sort_dimension = {
+	.name	= "ptr",
+	.cmp	= ptr_cmp,
+};
+
 static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->call_site < r->call_site)
@@ -453,6 +470,11 @@ static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension callsite_sort_dimension = {
+	.name	= "callsite",
+	.cmp	= callsite_cmp,
+};
+
 static int hit_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->hit < r->hit)
@@ -462,6 +484,11 @@ static int hit_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension hit_sort_dimension = {
+	.name	= "hit",
+	.cmp	= hit_cmp,
+};
+
 static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	if (l->bytes_alloc < r->bytes_alloc)
@@ -471,6 +498,11 @@ static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension bytes_sort_dimension = {
+	.name	= "bytes",
+	.cmp	= bytes_cmp,
+};
+
 static int frag_cmp(struct alloc_stat *l, struct alloc_stat *r)
 {
 	double x, y;
@@ -485,31 +517,73 @@ static int frag_cmp(struct alloc_stat *l, struct alloc_stat *r)
 	return 0;
 }
 
+static struct sort_dimension frag_sort_dimension = {
+	.name	= "frag",
+	.cmp	= frag_cmp,
+};
+
+static struct sort_dimension *avail_sorts[] = {
+	&ptr_sort_dimension,
+	&callsite_sort_dimension,
+	&hit_sort_dimension,
+	&bytes_sort_dimension,
+	&frag_sort_dimension,
+};
+
+#define NUM_AVAIL_SORTS	\
+	(int)(sizeof(avail_sorts) / sizeof(struct sort_dimension *))
+
+static int sort_dimension__add(const char *tok, struct list_head *list)
+{
+	struct sort_dimension *sort;
+	int i;
+
+	for (i = 0; i < NUM_AVAIL_SORTS; i++) {
+		if (!strcmp(avail_sorts[i]->name, tok)) {
+			sort = malloc(sizeof(*sort));
+			if (!sort)
+				die("malloc");
+			memcpy(sort, avail_sorts[i], sizeof(*sort));
+			list_add_tail(&sort->list, list);
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+static int setup_sorting(struct list_head *sort_list, const char *arg)
+{
+	char *tok;
+	char *str = strdup(arg);
+
+	if (!str)
+		die("strdup");
+
+	while (true) {
+		tok = strsep(&str, ",");
+		if (!tok)
+			break;
+		if (sort_dimension__add(tok, sort_list) < 0) {
+			error("Unknown --sort key: '%s'", tok);
+			return -1;
+		}
+	}
+
+	free(str);
+	return 0;
+}
+
 static int parse_sort_opt(const struct option *opt __used,
 			  const char *arg, int unset __used)
 {
-	sort_fn_t sort_fn;
-
 	if (!arg)
 		return -1;
 
-	if (strcmp(arg, "ptr") == 0)
-		sort_fn = ptr_cmp;
-	else if (strcmp(arg, "call_site") == 0)
-		sort_fn = callsite_cmp;
-	else if (strcmp(arg, "hit") == 0)
-		sort_fn = hit_cmp;
-	else if (strcmp(arg, "bytes") == 0)
-		sort_fn = bytes_cmp;
-	else if (strcmp(arg, "frag") == 0)
-		sort_fn = frag_cmp;
-	else
-		return -1;
-
 	if (caller_flag > alloc_flag)
-		caller_sort_fn = sort_fn;
+		return setup_sorting(&caller_sort, arg);
 	else
-		alloc_sort_fn = sort_fn;
+		return setup_sorting(&alloc_sort, arg);
 
 	return 0;
 }
@@ -553,8 +627,8 @@ static const struct option kmem_options[] = {
 	OPT_CALLBACK(0, "stat", NULL, "<alloc>|<caller>",
 		     "stat selector, Pass 'alloc' or 'caller'.",
 		     parse_stat_opt),
-	OPT_CALLBACK('s', "sort", NULL, "key",
-		     "sort by key: ptr, call_site, hit, bytes, frag",
+	OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
+		     "sort by key(s): ptr, call_site, bytes, hit, frag",
 		     parse_sort_opt),
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
@@ -606,10 +680,10 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
 	else if (argc)
 		usage_with_options(kmem_usage, kmem_options);
 
-	if (!alloc_sort_fn)
-		alloc_sort_fn = bytes_cmp;
-	if (!caller_sort_fn)
-		caller_sort_fn = bytes_cmp;
+	if (list_empty(&caller_sort))
+		setup_sorting(&caller_sort, default_sort_order);
+	if (list_empty(&alloc_sort))
+		setup_sorting(&alloc_sort, default_sort_order);
 
 	return __cmd_kmem();
 }

--
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^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [PATCH 3/5] perf kmem: Collect cross node allocation statistics
  2009-11-24  5:25 ` Li Zefan
@ 2009-11-24  5:26   ` Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:26 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Show cross node memory allocations:

 # ./perf kmem

 SUMMARY
 =======
 ...
 Cross node allocations: 0/3633

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/builtin-kmem.c |   81 +++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 79 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index dc86f1e..1ecf3f4 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -36,6 +36,9 @@ static char			default_sort_order[] = "frag,hit,bytes";
 static char			*cwd;
 static int			cwdlen;
 
+static int			*cpunode_map;
+static int			max_cpu_num;
+
 struct alloc_stat {
 	union {
 		u64	call_site;
@@ -54,12 +57,74 @@ static struct rb_root root_caller_stat;
 static struct rb_root root_caller_sorted;
 
 static unsigned long total_requested, total_allocated;
+static unsigned long nr_allocs, nr_cross_allocs;
 
 struct raw_event_sample {
 	u32 size;
 	char data[0];
 };
 
+#define PATH_SYS_NODE	"/sys/devices/system/node"
+
+static void init_cpunode_map(void)
+{
+	FILE *fp;
+	int i;
+
+	fp = fopen("/sys/devices/system/cpu/kernel_max", "r");
+	if (!fp) {
+		max_cpu_num = 4096;
+		return;
+	}
+
+	if (fscanf(fp, "%d", &max_cpu_num) < 1)
+		die("Failed to read 'kernel_max' from sysfs");
+	max_cpu_num++;
+
+	cpunode_map = calloc(max_cpu_num, sizeof(int));
+	if (!cpunode_map)
+		die("calloc");
+	for (i = 0; i < max_cpu_num; i++)
+		cpunode_map[i] = -1;
+	fclose(fp);
+}
+
+static void setup_cpunode_map(void)
+{
+	struct dirent *dent1, *dent2;
+	DIR *dir1, *dir2;
+	unsigned int cpu, mem;
+	char buf[PATH_MAX];
+
+	init_cpunode_map();
+
+	dir1 = opendir(PATH_SYS_NODE);
+	if (!dir1)
+		return;
+
+	while (true) {
+		dent1 = readdir(dir1);
+		if (!dent1)
+			break;
+
+		if (sscanf(dent1->d_name, "node%u", &mem) < 1)
+			continue;
+
+		snprintf(buf, PATH_MAX, "%s/%s", PATH_SYS_NODE, dent1->d_name);
+		dir2 = opendir(buf);
+		if (!dir2)
+			continue;
+		while (true) {
+			dent2 = readdir(dir2);
+			if (!dent2)
+				break;
+			if (sscanf(dent2->d_name, "cpu%u", &cpu) < 1)
+				continue;
+			cpunode_map[cpu] = mem;
+		}
+	}
+}
+
 static int
 process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 {
@@ -157,15 +222,16 @@ static void insert_caller_stat(unsigned long call_site,
 
 static void process_alloc_event(struct raw_event_sample *raw,
 				struct event *event,
-				int cpu __used,
+				int cpu,
 				u64 timestamp __used,
 				struct thread *thread __used,
-				int node __used)
+				int node)
 {
 	unsigned long call_site;
 	unsigned long ptr;
 	int bytes_req;
 	int bytes_alloc;
+	int node1, node2;
 
 	ptr = raw_field_value(event, "ptr", raw->data);
 	call_site = raw_field_value(event, "call_site", raw->data);
@@ -177,6 +243,14 @@ static void process_alloc_event(struct raw_event_sample *raw,
 
 	total_requested += bytes_req;
 	total_allocated += bytes_alloc;
+
+	if (node) {
+		node1 = cpunode_map[cpu];
+		node2 = raw_field_value(event, "node", raw->data);
+		if (node1 != node2)
+			nr_cross_allocs++;
+	}
+	nr_allocs++;
 }
 
 static void process_free_event(struct raw_event_sample *raw __used,
@@ -359,6 +433,7 @@ static void print_summary(void)
 	       total_allocated - total_requested);
 	printf("Internal fragmentation: %f%%\n",
 	       fragmentation(total_requested, total_allocated));
+	printf("Cross CPU allocations: %lu/%lu\n", nr_cross_allocs, nr_allocs);
 }
 
 static void print_result(void)
@@ -685,6 +760,8 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
 	if (list_empty(&alloc_sort))
 		setup_sorting(&alloc_sort, default_sort_order);
 
+	setup_cpunode_map();
+
 	return __cmd_kmem();
 }
 
-- 
1.6.3


^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [PATCH 3/5] perf kmem: Collect cross node allocation statistics
@ 2009-11-24  5:26   ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:26 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Show cross node memory allocations:

 # ./perf kmem

 SUMMARY
 =======
 ...
 Cross node allocations: 0/3633

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/builtin-kmem.c |   81 +++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 79 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index dc86f1e..1ecf3f4 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -36,6 +36,9 @@ static char			default_sort_order[] = "frag,hit,bytes";
 static char			*cwd;
 static int			cwdlen;
 
+static int			*cpunode_map;
+static int			max_cpu_num;
+
 struct alloc_stat {
 	union {
 		u64	call_site;
@@ -54,12 +57,74 @@ static struct rb_root root_caller_stat;
 static struct rb_root root_caller_sorted;
 
 static unsigned long total_requested, total_allocated;
+static unsigned long nr_allocs, nr_cross_allocs;
 
 struct raw_event_sample {
 	u32 size;
 	char data[0];
 };
 
+#define PATH_SYS_NODE	"/sys/devices/system/node"
+
+static void init_cpunode_map(void)
+{
+	FILE *fp;
+	int i;
+
+	fp = fopen("/sys/devices/system/cpu/kernel_max", "r");
+	if (!fp) {
+		max_cpu_num = 4096;
+		return;
+	}
+
+	if (fscanf(fp, "%d", &max_cpu_num) < 1)
+		die("Failed to read 'kernel_max' from sysfs");
+	max_cpu_num++;
+
+	cpunode_map = calloc(max_cpu_num, sizeof(int));
+	if (!cpunode_map)
+		die("calloc");
+	for (i = 0; i < max_cpu_num; i++)
+		cpunode_map[i] = -1;
+	fclose(fp);
+}
+
+static void setup_cpunode_map(void)
+{
+	struct dirent *dent1, *dent2;
+	DIR *dir1, *dir2;
+	unsigned int cpu, mem;
+	char buf[PATH_MAX];
+
+	init_cpunode_map();
+
+	dir1 = opendir(PATH_SYS_NODE);
+	if (!dir1)
+		return;
+
+	while (true) {
+		dent1 = readdir(dir1);
+		if (!dent1)
+			break;
+
+		if (sscanf(dent1->d_name, "node%u", &mem) < 1)
+			continue;
+
+		snprintf(buf, PATH_MAX, "%s/%s", PATH_SYS_NODE, dent1->d_name);
+		dir2 = opendir(buf);
+		if (!dir2)
+			continue;
+		while (true) {
+			dent2 = readdir(dir2);
+			if (!dent2)
+				break;
+			if (sscanf(dent2->d_name, "cpu%u", &cpu) < 1)
+				continue;
+			cpunode_map[cpu] = mem;
+		}
+	}
+}
+
 static int
 process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 {
@@ -157,15 +222,16 @@ static void insert_caller_stat(unsigned long call_site,
 
 static void process_alloc_event(struct raw_event_sample *raw,
 				struct event *event,
-				int cpu __used,
+				int cpu,
 				u64 timestamp __used,
 				struct thread *thread __used,
-				int node __used)
+				int node)
 {
 	unsigned long call_site;
 	unsigned long ptr;
 	int bytes_req;
 	int bytes_alloc;
+	int node1, node2;
 
 	ptr = raw_field_value(event, "ptr", raw->data);
 	call_site = raw_field_value(event, "call_site", raw->data);
@@ -177,6 +243,14 @@ static void process_alloc_event(struct raw_event_sample *raw,
 
 	total_requested += bytes_req;
 	total_allocated += bytes_alloc;
+
+	if (node) {
+		node1 = cpunode_map[cpu];
+		node2 = raw_field_value(event, "node", raw->data);
+		if (node1 != node2)
+			nr_cross_allocs++;
+	}
+	nr_allocs++;
 }
 
 static void process_free_event(struct raw_event_sample *raw __used,
@@ -359,6 +433,7 @@ static void print_summary(void)
 	       total_allocated - total_requested);
 	printf("Internal fragmentation: %f%%\n",
 	       fragmentation(total_requested, total_allocated));
+	printf("Cross CPU allocations: %lu/%lu\n", nr_cross_allocs, nr_allocs);
 }
 
 static void print_result(void)
@@ -685,6 +760,8 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
 	if (list_empty(&alloc_sort))
 		setup_sorting(&alloc_sort, default_sort_order);
 
+	setup_cpunode_map();
+
 	return __cmd_kmem();
 }
 
-- 
1.6.3

--
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^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf kmem: Collect cross node allocation statistics
  2009-11-24  5:26   ` Li Zefan
@ 2009-11-24 16:55     ` tip-bot for Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:55 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  7d0d39459dab20bf60cac30a1a7d50b286c60cc1
Gitweb:     http://git.kernel.org/tip/7d0d39459dab20bf60cac30a1a7d50b286c60cc1
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:26:31 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:50 +0100

perf kmem: Collect cross node allocation statistics

Show cross node memory allocations:

 # ./perf kmem

 SUMMARY
 =======
 ...
 Cross node allocations: 0/3633

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6E87.10906@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-kmem.c |   81 +++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 79 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index dc86f1e..1ecf3f4 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -36,6 +36,9 @@ static char			default_sort_order[] = "frag,hit,bytes";
 static char			*cwd;
 static int			cwdlen;
 
+static int			*cpunode_map;
+static int			max_cpu_num;
+
 struct alloc_stat {
 	union {
 		u64	call_site;
@@ -54,12 +57,74 @@ static struct rb_root root_caller_stat;
 static struct rb_root root_caller_sorted;
 
 static unsigned long total_requested, total_allocated;
+static unsigned long nr_allocs, nr_cross_allocs;
 
 struct raw_event_sample {
 	u32 size;
 	char data[0];
 };
 
+#define PATH_SYS_NODE	"/sys/devices/system/node"
+
+static void init_cpunode_map(void)
+{
+	FILE *fp;
+	int i;
+
+	fp = fopen("/sys/devices/system/cpu/kernel_max", "r");
+	if (!fp) {
+		max_cpu_num = 4096;
+		return;
+	}
+
+	if (fscanf(fp, "%d", &max_cpu_num) < 1)
+		die("Failed to read 'kernel_max' from sysfs");
+	max_cpu_num++;
+
+	cpunode_map = calloc(max_cpu_num, sizeof(int));
+	if (!cpunode_map)
+		die("calloc");
+	for (i = 0; i < max_cpu_num; i++)
+		cpunode_map[i] = -1;
+	fclose(fp);
+}
+
+static void setup_cpunode_map(void)
+{
+	struct dirent *dent1, *dent2;
+	DIR *dir1, *dir2;
+	unsigned int cpu, mem;
+	char buf[PATH_MAX];
+
+	init_cpunode_map();
+
+	dir1 = opendir(PATH_SYS_NODE);
+	if (!dir1)
+		return;
+
+	while (true) {
+		dent1 = readdir(dir1);
+		if (!dent1)
+			break;
+
+		if (sscanf(dent1->d_name, "node%u", &mem) < 1)
+			continue;
+
+		snprintf(buf, PATH_MAX, "%s/%s", PATH_SYS_NODE, dent1->d_name);
+		dir2 = opendir(buf);
+		if (!dir2)
+			continue;
+		while (true) {
+			dent2 = readdir(dir2);
+			if (!dent2)
+				break;
+			if (sscanf(dent2->d_name, "cpu%u", &cpu) < 1)
+				continue;
+			cpunode_map[cpu] = mem;
+		}
+	}
+}
+
 static int
 process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 {
@@ -157,15 +222,16 @@ static void insert_caller_stat(unsigned long call_site,
 
 static void process_alloc_event(struct raw_event_sample *raw,
 				struct event *event,
-				int cpu __used,
+				int cpu,
 				u64 timestamp __used,
 				struct thread *thread __used,
-				int node __used)
+				int node)
 {
 	unsigned long call_site;
 	unsigned long ptr;
 	int bytes_req;
 	int bytes_alloc;
+	int node1, node2;
 
 	ptr = raw_field_value(event, "ptr", raw->data);
 	call_site = raw_field_value(event, "call_site", raw->data);
@@ -177,6 +243,14 @@ static void process_alloc_event(struct raw_event_sample *raw,
 
 	total_requested += bytes_req;
 	total_allocated += bytes_alloc;
+
+	if (node) {
+		node1 = cpunode_map[cpu];
+		node2 = raw_field_value(event, "node", raw->data);
+		if (node1 != node2)
+			nr_cross_allocs++;
+	}
+	nr_allocs++;
 }
 
 static void process_free_event(struct raw_event_sample *raw __used,
@@ -359,6 +433,7 @@ static void print_summary(void)
 	       total_allocated - total_requested);
 	printf("Internal fragmentation: %f%%\n",
 	       fragmentation(total_requested, total_allocated));
+	printf("Cross CPU allocations: %lu/%lu\n", nr_cross_allocs, nr_allocs);
 }
 
 static void print_result(void)
@@ -685,6 +760,8 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
 	if (list_empty(&alloc_sort))
 		setup_sorting(&alloc_sort, default_sort_order);
 
+	setup_cpunode_map();
+
 	return __cmd_kmem();
 }
 

^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf kmem: Collect cross node allocation statistics
@ 2009-11-24 16:55     ` tip-bot for Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:55 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  7d0d39459dab20bf60cac30a1a7d50b286c60cc1
Gitweb:     http://git.kernel.org/tip/7d0d39459dab20bf60cac30a1a7d50b286c60cc1
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:26:31 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:50 +0100

perf kmem: Collect cross node allocation statistics

Show cross node memory allocations:

 # ./perf kmem

 SUMMARY
 =======
 ...
 Cross node allocations: 0/3633

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6E87.10906@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-kmem.c |   81 +++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 79 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index dc86f1e..1ecf3f4 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -36,6 +36,9 @@ static char			default_sort_order[] = "frag,hit,bytes";
 static char			*cwd;
 static int			cwdlen;
 
+static int			*cpunode_map;
+static int			max_cpu_num;
+
 struct alloc_stat {
 	union {
 		u64	call_site;
@@ -54,12 +57,74 @@ static struct rb_root root_caller_stat;
 static struct rb_root root_caller_sorted;
 
 static unsigned long total_requested, total_allocated;
+static unsigned long nr_allocs, nr_cross_allocs;
 
 struct raw_event_sample {
 	u32 size;
 	char data[0];
 };
 
+#define PATH_SYS_NODE	"/sys/devices/system/node"
+
+static void init_cpunode_map(void)
+{
+	FILE *fp;
+	int i;
+
+	fp = fopen("/sys/devices/system/cpu/kernel_max", "r");
+	if (!fp) {
+		max_cpu_num = 4096;
+		return;
+	}
+
+	if (fscanf(fp, "%d", &max_cpu_num) < 1)
+		die("Failed to read 'kernel_max' from sysfs");
+	max_cpu_num++;
+
+	cpunode_map = calloc(max_cpu_num, sizeof(int));
+	if (!cpunode_map)
+		die("calloc");
+	for (i = 0; i < max_cpu_num; i++)
+		cpunode_map[i] = -1;
+	fclose(fp);
+}
+
+static void setup_cpunode_map(void)
+{
+	struct dirent *dent1, *dent2;
+	DIR *dir1, *dir2;
+	unsigned int cpu, mem;
+	char buf[PATH_MAX];
+
+	init_cpunode_map();
+
+	dir1 = opendir(PATH_SYS_NODE);
+	if (!dir1)
+		return;
+
+	while (true) {
+		dent1 = readdir(dir1);
+		if (!dent1)
+			break;
+
+		if (sscanf(dent1->d_name, "node%u", &mem) < 1)
+			continue;
+
+		snprintf(buf, PATH_MAX, "%s/%s", PATH_SYS_NODE, dent1->d_name);
+		dir2 = opendir(buf);
+		if (!dir2)
+			continue;
+		while (true) {
+			dent2 = readdir(dir2);
+			if (!dent2)
+				break;
+			if (sscanf(dent2->d_name, "cpu%u", &cpu) < 1)
+				continue;
+			cpunode_map[cpu] = mem;
+		}
+	}
+}
+
 static int
 process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 {
@@ -157,15 +222,16 @@ static void insert_caller_stat(unsigned long call_site,
 
 static void process_alloc_event(struct raw_event_sample *raw,
 				struct event *event,
-				int cpu __used,
+				int cpu,
 				u64 timestamp __used,
 				struct thread *thread __used,
-				int node __used)
+				int node)
 {
 	unsigned long call_site;
 	unsigned long ptr;
 	int bytes_req;
 	int bytes_alloc;
+	int node1, node2;
 
 	ptr = raw_field_value(event, "ptr", raw->data);
 	call_site = raw_field_value(event, "call_site", raw->data);
@@ -177,6 +243,14 @@ static void process_alloc_event(struct raw_event_sample *raw,
 
 	total_requested += bytes_req;
 	total_allocated += bytes_alloc;
+
+	if (node) {
+		node1 = cpunode_map[cpu];
+		node2 = raw_field_value(event, "node", raw->data);
+		if (node1 != node2)
+			nr_cross_allocs++;
+	}
+	nr_allocs++;
 }
 
 static void process_free_event(struct raw_event_sample *raw __used,
@@ -359,6 +433,7 @@ static void print_summary(void)
 	       total_allocated - total_requested);
 	printf("Internal fragmentation: %f%%\n",
 	       fragmentation(total_requested, total_allocated));
+	printf("Cross CPU allocations: %lu/%lu\n", nr_cross_allocs, nr_allocs);
 }
 
 static void print_result(void)
@@ -685,6 +760,8 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
 	if (list_empty(&alloc_sort))
 		setup_sorting(&alloc_sort, default_sort_order);
 
+	setup_cpunode_map();
+
 	return __cmd_kmem();
 }
 

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
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^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [PATCH 4/5] perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites
  2009-11-24  5:25 ` Li Zefan
@ 2009-11-24  5:26   ` Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:26 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Show statistics for allocations and frees on different cpus:

------------------------------------------------------------------------------------------------------
 Callsite                           | Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag
------------------------------------------------------------------------------------------------------
 perf_event_alloc.clone.0+0         |      7504/682   |      7128/648   |     11 |        0 |  5.011%
 alloc_buffer_head+16               |       288/57    |       280/56    |      5 |        0 |  2.778%
 radix_tree_preload+51              |       296/296   |       288/288   |      1 |        0 |  2.703%
 tracepoint_add_probe+32e           |       157/31    |       154/30    |      5 |        0 |  1.911%
 do_maps_open+0                     |       796/12    |       792/12    |     66 |        0 |  0.503%
 sock_alloc_send_pskb+16e           |     23780/495   |     23744/494   |     48 |       38 |  0.151%
 anon_vma_prepare+9a                |      3744/44    |      3740/44    |     85 |        0 |  0.107%
 d_alloc+21                         |     64948/164   |     64944/164   |    396 |        0 |  0.006%
 proc_alloc_inode+23                |    262292/676   |    262288/676   |    388 |        0 |  0.002%
 create_object+28                   |    459600/200   |    459600/200   |   2298 |       71 |  0.000%
 journal_start+67                   |     14440/40    |     14440/40    |    361 |        0 |  0.000%
 get_empty_filp+df                  |     53504/256   |     53504/256   |    209 |        0 |  0.000%
 getname+2a                         |    823296/4096  |    823296/4096  |    201 |        0 |  0.000%
 seq_read+2b0                       |    544768/4096  |    544768/4096  |    133 |        0 |  0.000%
 seq_open+6d                        |     17024/128   |     17024/128   |    133 |        0 |  0.000%
 mmap_region+2e6                    |     11704/88    |     11704/88    |    133 |        0 |  0.000%
 single_open+0                      |      1072/16    |      1072/16    |     67 |        0 |  0.000%
 __alloc_skb+2e                     |     12544/256   |     12544/256   |     49 |       38 |  0.000%
 __sigqueue_alloc+4a                |      1296/144   |      1296/144   |      9 |        8 |  0.000%
 tracepoint_add_probe+6f            |        80/16    |        80/16    |      5 |        0 |  0.000%
------------------------------------------------------------------------------------------------------
...

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/builtin-kmem.c |  122 ++++++++++++++++++++++++++++++++++----------
 1 files changed, 94 insertions(+), 28 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1ecf3f4..173d6db 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -40,13 +40,14 @@ static int			*cpunode_map;
 static int			max_cpu_num;
 
 struct alloc_stat {
-	union {
-		u64	call_site;
-		u64	ptr;
-	};
+	u64	call_site;
+	u64	ptr;
 	u64	bytes_req;
 	u64	bytes_alloc;
 	u32	hit;
+	u32	pingpong;
+
+	short	alloc_cpu;
 
 	struct rb_node node;
 };
@@ -144,16 +145,13 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 	return 0;
 }
 
-static void insert_alloc_stat(unsigned long ptr,
-			      int bytes_req, int bytes_alloc)
+static void insert_alloc_stat(unsigned long call_site, unsigned long ptr,
+			      int bytes_req, int bytes_alloc, int cpu)
 {
 	struct rb_node **node = &root_alloc_stat.rb_node;
 	struct rb_node *parent = NULL;
 	struct alloc_stat *data = NULL;
 
-	if (!alloc_flag)
-		return;
-
 	while (*node) {
 		parent = *node;
 		data = rb_entry(*node, struct alloc_stat, node);
@@ -172,7 +170,10 @@ static void insert_alloc_stat(unsigned long ptr,
 		data->bytes_alloc += bytes_req;
 	} else {
 		data = malloc(sizeof(*data));
+		if (!data)
+			die("malloc");
 		data->ptr = ptr;
+		data->pingpong = 0;
 		data->hit = 1;
 		data->bytes_req = bytes_req;
 		data->bytes_alloc = bytes_alloc;
@@ -180,6 +181,8 @@ static void insert_alloc_stat(unsigned long ptr,
 		rb_link_node(&data->node, parent, node);
 		rb_insert_color(&data->node, &root_alloc_stat);
 	}
+	data->call_site = call_site;
+	data->alloc_cpu = cpu;
 }
 
 static void insert_caller_stat(unsigned long call_site,
@@ -189,9 +192,6 @@ static void insert_caller_stat(unsigned long call_site,
 	struct rb_node *parent = NULL;
 	struct alloc_stat *data = NULL;
 
-	if (!caller_flag)
-		return;
-
 	while (*node) {
 		parent = *node;
 		data = rb_entry(*node, struct alloc_stat, node);
@@ -210,7 +210,10 @@ static void insert_caller_stat(unsigned long call_site,
 		data->bytes_alloc += bytes_req;
 	} else {
 		data = malloc(sizeof(*data));
+		if (!data)
+			die("malloc");
 		data->call_site = call_site;
+		data->pingpong = 0;
 		data->hit = 1;
 		data->bytes_req = bytes_req;
 		data->bytes_alloc = bytes_alloc;
@@ -238,7 +241,7 @@ static void process_alloc_event(struct raw_event_sample *raw,
 	bytes_req = raw_field_value(event, "bytes_req", raw->data);
 	bytes_alloc = raw_field_value(event, "bytes_alloc", raw->data);
 
-	insert_alloc_stat(ptr, bytes_req, bytes_alloc);
+	insert_alloc_stat(call_site, ptr, bytes_req, bytes_alloc, cpu);
 	insert_caller_stat(call_site, bytes_req, bytes_alloc);
 
 	total_requested += bytes_req;
@@ -253,12 +256,58 @@ static void process_alloc_event(struct raw_event_sample *raw,
 	nr_allocs++;
 }
 
-static void process_free_event(struct raw_event_sample *raw __used,
-			       struct event *event __used,
-			       int cpu __used,
+static int ptr_cmp(struct alloc_stat *, struct alloc_stat *);
+static int callsite_cmp(struct alloc_stat *, struct alloc_stat *);
+
+static struct alloc_stat *search_alloc_stat(unsigned long ptr,
+					    unsigned long call_site,
+					    struct rb_root *root,
+					    sort_fn_t sort_fn)
+{
+	struct rb_node *node = root->rb_node;
+	struct alloc_stat key = { .ptr = ptr, .call_site = call_site };
+
+	while (node) {
+		struct alloc_stat *data;
+		int cmp;
+
+		data = rb_entry(node, struct alloc_stat, node);
+
+		cmp = sort_fn(&key, data);
+		if (cmp < 0)
+			node = node->rb_left;
+		else if (cmp > 0)
+			node = node->rb_right;
+		else
+			return data;
+	}
+	return NULL;
+}
+
+static void process_free_event(struct raw_event_sample *raw,
+			       struct event *event,
+			       int cpu,
 			       u64 timestamp __used,
 			       struct thread *thread __used)
 {
+	unsigned long ptr;
+	struct alloc_stat *s_alloc, *s_caller;
+
+	ptr = raw_field_value(event, "ptr", raw->data);
+
+	s_alloc = search_alloc_stat(ptr, 0, &root_alloc_stat, ptr_cmp);
+	if (!s_alloc)
+		return;
+
+	if (cpu != s_alloc->alloc_cpu) {
+		s_alloc->pingpong++;
+
+		s_caller = search_alloc_stat(0, s_alloc->call_site,
+					     &root_caller_stat, callsite_cmp);
+		assert(s_caller);
+		s_caller->pingpong++;
+	}
+	s_alloc->alloc_cpu = -1;
 }
 
 static void
@@ -379,10 +428,10 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 {
 	struct rb_node *next;
 
-	printf("%.78s\n", graph_dotted_line);
-	printf("%-28s|",  is_caller ? "Callsite": "Alloc Ptr");
-	printf("Total_alloc/Per | Total_req/Per | Hit  | Frag\n");
-	printf("%.78s\n", graph_dotted_line);
+	printf("%.102s\n", graph_dotted_line);
+	printf(" %-34s |",  is_caller ? "Callsite": "Alloc Ptr");
+	printf(" Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag\n");
+	printf("%.102s\n", graph_dotted_line);
 
 	next = rb_first(root);
 
@@ -390,7 +439,7 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 		struct alloc_stat *data = rb_entry(next, struct alloc_stat,
 						   node);
 		struct symbol *sym = NULL;
-		char bf[BUFSIZ];
+		char buf[BUFSIZ];
 		u64 addr;
 
 		if (is_caller) {
@@ -402,26 +451,28 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 			addr = data->ptr;
 
 		if (sym != NULL)
-			snprintf(bf, sizeof(bf), "%s+%Lx", sym->name,
+			snprintf(buf, sizeof(buf), "%s+%Lx", sym->name,
 				 addr - sym->start);
 		else
-			snprintf(bf, sizeof(bf), "%#Lx", addr);
+			snprintf(buf, sizeof(buf), "%#Lx", addr);
+		printf(" %-34s |", buf);
 
-		printf("%-28s|%8llu/%-6lu |%8llu/%-6lu|%6lu|%8.3f%%\n",
-		       bf, (unsigned long long)data->bytes_alloc,
+		printf(" %9llu/%-5lu | %9llu/%-5lu | %6lu | %8lu | %6.3f%%\n",
+		       (unsigned long long)data->bytes_alloc,
 		       (unsigned long)data->bytes_alloc / data->hit,
 		       (unsigned long long)data->bytes_req,
 		       (unsigned long)data->bytes_req / data->hit,
 		       (unsigned long)data->hit,
+		       (unsigned long)data->pingpong,
 		       fragmentation(data->bytes_req, data->bytes_alloc));
 
 		next = rb_next(next);
 	}
 
 	if (n_lines == -1)
-		printf(" ...                        | ...            | ...           | ...    | ...   \n");
+		printf(" ...                                | ...             | ...             | ...    | ...      | ...   \n");
 
-	printf("%.78s\n", graph_dotted_line);
+	printf("%.102s\n", graph_dotted_line);
 }
 
 static void print_summary(void)
@@ -597,12 +648,27 @@ static struct sort_dimension frag_sort_dimension = {
 	.cmp	= frag_cmp,
 };
 
+static int pingpong_cmp(struct alloc_stat *l, struct alloc_stat *r)
+{
+	if (l->pingpong < r->pingpong)
+		return -1;
+	else if (l->pingpong > r->pingpong)
+		return 1;
+	return 0;
+}
+
+static struct sort_dimension pingpong_sort_dimension = {
+	.name	= "pingpong",
+	.cmp	= pingpong_cmp,
+};
+
 static struct sort_dimension *avail_sorts[] = {
 	&ptr_sort_dimension,
 	&callsite_sort_dimension,
 	&hit_sort_dimension,
 	&bytes_sort_dimension,
 	&frag_sort_dimension,
+	&pingpong_sort_dimension,
 };
 
 #define NUM_AVAIL_SORTS	\
@@ -703,7 +769,7 @@ static const struct option kmem_options[] = {
 		     "stat selector, Pass 'alloc' or 'caller'.",
 		     parse_stat_opt),
 	OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
-		     "sort by key(s): ptr, call_site, bytes, hit, frag",
+		     "sort by keys: ptr, call_site, bytes, hit, pingpong, frag",
 		     parse_sort_opt),
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
-- 
1.6.3


^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [PATCH 4/5] perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites
@ 2009-11-24  5:26   ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:26 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Show statistics for allocations and frees on different cpus:

------------------------------------------------------------------------------------------------------
 Callsite                           | Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag
------------------------------------------------------------------------------------------------------
 perf_event_alloc.clone.0+0         |      7504/682   |      7128/648   |     11 |        0 |  5.011%
 alloc_buffer_head+16               |       288/57    |       280/56    |      5 |        0 |  2.778%
 radix_tree_preload+51              |       296/296   |       288/288   |      1 |        0 |  2.703%
 tracepoint_add_probe+32e           |       157/31    |       154/30    |      5 |        0 |  1.911%
 do_maps_open+0                     |       796/12    |       792/12    |     66 |        0 |  0.503%
 sock_alloc_send_pskb+16e           |     23780/495   |     23744/494   |     48 |       38 |  0.151%
 anon_vma_prepare+9a                |      3744/44    |      3740/44    |     85 |        0 |  0.107%
 d_alloc+21                         |     64948/164   |     64944/164   |    396 |        0 |  0.006%
 proc_alloc_inode+23                |    262292/676   |    262288/676   |    388 |        0 |  0.002%
 create_object+28                   |    459600/200   |    459600/200   |   2298 |       71 |  0.000%
 journal_start+67                   |     14440/40    |     14440/40    |    361 |        0 |  0.000%
 get_empty_filp+df                  |     53504/256   |     53504/256   |    209 |        0 |  0.000%
 getname+2a                         |    823296/4096  |    823296/4096  |    201 |        0 |  0.000%
 seq_read+2b0                       |    544768/4096  |    544768/4096  |    133 |        0 |  0.000%
 seq_open+6d                        |     17024/128   |     17024/128   |    133 |        0 |  0.000%
 mmap_region+2e6                    |     11704/88    |     11704/88    |    133 |        0 |  0.000%
 single_open+0                      |      1072/16    |      1072/16    |     67 |        0 |  0.000%
 __alloc_skb+2e                     |     12544/256   |     12544/256   |     49 |       38 |  0.000%
 __sigqueue_alloc+4a                |      1296/144   |      1296/144   |      9 |        8 |  0.000%
 tracepoint_add_probe+6f            |        80/16    |        80/16    |      5 |        0 |  0.000%
------------------------------------------------------------------------------------------------------
...

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/builtin-kmem.c |  122 ++++++++++++++++++++++++++++++++++----------
 1 files changed, 94 insertions(+), 28 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1ecf3f4..173d6db 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -40,13 +40,14 @@ static int			*cpunode_map;
 static int			max_cpu_num;
 
 struct alloc_stat {
-	union {
-		u64	call_site;
-		u64	ptr;
-	};
+	u64	call_site;
+	u64	ptr;
 	u64	bytes_req;
 	u64	bytes_alloc;
 	u32	hit;
+	u32	pingpong;
+
+	short	alloc_cpu;
 
 	struct rb_node node;
 };
@@ -144,16 +145,13 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 	return 0;
 }
 
-static void insert_alloc_stat(unsigned long ptr,
-			      int bytes_req, int bytes_alloc)
+static void insert_alloc_stat(unsigned long call_site, unsigned long ptr,
+			      int bytes_req, int bytes_alloc, int cpu)
 {
 	struct rb_node **node = &root_alloc_stat.rb_node;
 	struct rb_node *parent = NULL;
 	struct alloc_stat *data = NULL;
 
-	if (!alloc_flag)
-		return;
-
 	while (*node) {
 		parent = *node;
 		data = rb_entry(*node, struct alloc_stat, node);
@@ -172,7 +170,10 @@ static void insert_alloc_stat(unsigned long ptr,
 		data->bytes_alloc += bytes_req;
 	} else {
 		data = malloc(sizeof(*data));
+		if (!data)
+			die("malloc");
 		data->ptr = ptr;
+		data->pingpong = 0;
 		data->hit = 1;
 		data->bytes_req = bytes_req;
 		data->bytes_alloc = bytes_alloc;
@@ -180,6 +181,8 @@ static void insert_alloc_stat(unsigned long ptr,
 		rb_link_node(&data->node, parent, node);
 		rb_insert_color(&data->node, &root_alloc_stat);
 	}
+	data->call_site = call_site;
+	data->alloc_cpu = cpu;
 }
 
 static void insert_caller_stat(unsigned long call_site,
@@ -189,9 +192,6 @@ static void insert_caller_stat(unsigned long call_site,
 	struct rb_node *parent = NULL;
 	struct alloc_stat *data = NULL;
 
-	if (!caller_flag)
-		return;
-
 	while (*node) {
 		parent = *node;
 		data = rb_entry(*node, struct alloc_stat, node);
@@ -210,7 +210,10 @@ static void insert_caller_stat(unsigned long call_site,
 		data->bytes_alloc += bytes_req;
 	} else {
 		data = malloc(sizeof(*data));
+		if (!data)
+			die("malloc");
 		data->call_site = call_site;
+		data->pingpong = 0;
 		data->hit = 1;
 		data->bytes_req = bytes_req;
 		data->bytes_alloc = bytes_alloc;
@@ -238,7 +241,7 @@ static void process_alloc_event(struct raw_event_sample *raw,
 	bytes_req = raw_field_value(event, "bytes_req", raw->data);
 	bytes_alloc = raw_field_value(event, "bytes_alloc", raw->data);
 
-	insert_alloc_stat(ptr, bytes_req, bytes_alloc);
+	insert_alloc_stat(call_site, ptr, bytes_req, bytes_alloc, cpu);
 	insert_caller_stat(call_site, bytes_req, bytes_alloc);
 
 	total_requested += bytes_req;
@@ -253,12 +256,58 @@ static void process_alloc_event(struct raw_event_sample *raw,
 	nr_allocs++;
 }
 
-static void process_free_event(struct raw_event_sample *raw __used,
-			       struct event *event __used,
-			       int cpu __used,
+static int ptr_cmp(struct alloc_stat *, struct alloc_stat *);
+static int callsite_cmp(struct alloc_stat *, struct alloc_stat *);
+
+static struct alloc_stat *search_alloc_stat(unsigned long ptr,
+					    unsigned long call_site,
+					    struct rb_root *root,
+					    sort_fn_t sort_fn)
+{
+	struct rb_node *node = root->rb_node;
+	struct alloc_stat key = { .ptr = ptr, .call_site = call_site };
+
+	while (node) {
+		struct alloc_stat *data;
+		int cmp;
+
+		data = rb_entry(node, struct alloc_stat, node);
+
+		cmp = sort_fn(&key, data);
+		if (cmp < 0)
+			node = node->rb_left;
+		else if (cmp > 0)
+			node = node->rb_right;
+		else
+			return data;
+	}
+	return NULL;
+}
+
+static void process_free_event(struct raw_event_sample *raw,
+			       struct event *event,
+			       int cpu,
 			       u64 timestamp __used,
 			       struct thread *thread __used)
 {
+	unsigned long ptr;
+	struct alloc_stat *s_alloc, *s_caller;
+
+	ptr = raw_field_value(event, "ptr", raw->data);
+
+	s_alloc = search_alloc_stat(ptr, 0, &root_alloc_stat, ptr_cmp);
+	if (!s_alloc)
+		return;
+
+	if (cpu != s_alloc->alloc_cpu) {
+		s_alloc->pingpong++;
+
+		s_caller = search_alloc_stat(0, s_alloc->call_site,
+					     &root_caller_stat, callsite_cmp);
+		assert(s_caller);
+		s_caller->pingpong++;
+	}
+	s_alloc->alloc_cpu = -1;
 }
 
 static void
@@ -379,10 +428,10 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 {
 	struct rb_node *next;
 
-	printf("%.78s\n", graph_dotted_line);
-	printf("%-28s|",  is_caller ? "Callsite": "Alloc Ptr");
-	printf("Total_alloc/Per | Total_req/Per | Hit  | Frag\n");
-	printf("%.78s\n", graph_dotted_line);
+	printf("%.102s\n", graph_dotted_line);
+	printf(" %-34s |",  is_caller ? "Callsite": "Alloc Ptr");
+	printf(" Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag\n");
+	printf("%.102s\n", graph_dotted_line);
 
 	next = rb_first(root);
 
@@ -390,7 +439,7 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 		struct alloc_stat *data = rb_entry(next, struct alloc_stat,
 						   node);
 		struct symbol *sym = NULL;
-		char bf[BUFSIZ];
+		char buf[BUFSIZ];
 		u64 addr;
 
 		if (is_caller) {
@@ -402,26 +451,28 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 			addr = data->ptr;
 
 		if (sym != NULL)
-			snprintf(bf, sizeof(bf), "%s+%Lx", sym->name,
+			snprintf(buf, sizeof(buf), "%s+%Lx", sym->name,
 				 addr - sym->start);
 		else
-			snprintf(bf, sizeof(bf), "%#Lx", addr);
+			snprintf(buf, sizeof(buf), "%#Lx", addr);
+		printf(" %-34s |", buf);
 
-		printf("%-28s|%8llu/%-6lu |%8llu/%-6lu|%6lu|%8.3f%%\n",
-		       bf, (unsigned long long)data->bytes_alloc,
+		printf(" %9llu/%-5lu | %9llu/%-5lu | %6lu | %8lu | %6.3f%%\n",
+		       (unsigned long long)data->bytes_alloc,
 		       (unsigned long)data->bytes_alloc / data->hit,
 		       (unsigned long long)data->bytes_req,
 		       (unsigned long)data->bytes_req / data->hit,
 		       (unsigned long)data->hit,
+		       (unsigned long)data->pingpong,
 		       fragmentation(data->bytes_req, data->bytes_alloc));
 
 		next = rb_next(next);
 	}
 
 	if (n_lines == -1)
-		printf(" ...                        | ...            | ...           | ...    | ...   \n");
+		printf(" ...                                | ...             | ...             | ...    | ...      | ...   \n");
 
-	printf("%.78s\n", graph_dotted_line);
+	printf("%.102s\n", graph_dotted_line);
 }
 
 static void print_summary(void)
@@ -597,12 +648,27 @@ static struct sort_dimension frag_sort_dimension = {
 	.cmp	= frag_cmp,
 };
 
+static int pingpong_cmp(struct alloc_stat *l, struct alloc_stat *r)
+{
+	if (l->pingpong < r->pingpong)
+		return -1;
+	else if (l->pingpong > r->pingpong)
+		return 1;
+	return 0;
+}
+
+static struct sort_dimension pingpong_sort_dimension = {
+	.name	= "pingpong",
+	.cmp	= pingpong_cmp,
+};
+
 static struct sort_dimension *avail_sorts[] = {
 	&ptr_sort_dimension,
 	&callsite_sort_dimension,
 	&hit_sort_dimension,
 	&bytes_sort_dimension,
 	&frag_sort_dimension,
+	&pingpong_sort_dimension,
 };
 
 #define NUM_AVAIL_SORTS	\
@@ -703,7 +769,7 @@ static const struct option kmem_options[] = {
 		     "stat selector, Pass 'alloc' or 'caller'.",
 		     parse_stat_opt),
 	OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
-		     "sort by key(s): ptr, call_site, bytes, hit, frag",
+		     "sort by keys: ptr, call_site, bytes, hit, pingpong, frag",
 		     parse_sort_opt),
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",
-- 
1.6.3

--
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^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites
  2009-11-24  5:26   ` Li Zefan
@ 2009-11-24 16:55     ` tip-bot for Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:55 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  079d3f653134e2f2ac99dae28b08c0cc64268103
Gitweb:     http://git.kernel.org/tip/079d3f653134e2f2ac99dae28b08c0cc64268103
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:26:55 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:50 +0100

perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites

Show statistics for allocations and frees on different cpus:

------------------------------------------------------------------------------------------------------
Callsite                           | Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag
------------------------------------------------------------------------------------------------------
 perf_event_alloc.clone.0+0         |      7504/682   |      7128/648   |     11 |        0 |  5.011%
 alloc_buffer_head+16               |       288/57    |       280/56    |      5 |        0 |  2.778%
 radix_tree_preload+51              |       296/296   |       288/288   |      1 |        0 |  2.703%
 tracepoint_add_probe+32e           |       157/31    |       154/30    |      5 |        0 |  1.911%
 do_maps_open+0                     |       796/12    |       792/12    |     66 |        0 |  0.503%
 sock_alloc_send_pskb+16e           |     23780/495   |     23744/494   |     48 |       38 |  0.151%
 anon_vma_prepare+9a                |      3744/44    |      3740/44    |     85 |        0 |  0.107%
 d_alloc+21                         |     64948/164   |     64944/164   |    396 |        0 |  0.006%
 proc_alloc_inode+23                |    262292/676   |    262288/676   |    388 |        0 |  0.002%
 create_object+28                   |    459600/200   |    459600/200   |   2298 |       71 |  0.000%
 journal_start+67                   |     14440/40    |     14440/40    |    361 |        0 |  0.000%
 get_empty_filp+df                  |     53504/256   |     53504/256   |    209 |        0 |  0.000%
 getname+2a                         |    823296/4096  |    823296/4096  |    201 |        0 |  0.000%
 seq_read+2b0                       |    544768/4096  |    544768/4096  |    133 |        0 |  0.000%
 seq_open+6d                        |     17024/128   |     17024/128   |    133 |        0 |  0.000%
 mmap_region+2e6                    |     11704/88    |     11704/88    |    133 |        0 |  0.000%
 single_open+0                      |      1072/16    |      1072/16    |     67 |        0 |  0.000%
 __alloc_skb+2e                     |     12544/256   |     12544/256   |     49 |       38 |  0.000%
 __sigqueue_alloc+4a                |      1296/144   |      1296/144   |      9 |        8 |  0.000%
 tracepoint_add_probe+6f            |        80/16    |        80/16    |      5 |        0 |  0.000%
------------------------------------------------------------------------------------------------------
...

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6E9F.6020309@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-kmem.c |  122 ++++++++++++++++++++++++++++++++++----------
 1 files changed, 94 insertions(+), 28 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1ecf3f4..173d6db 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -40,13 +40,14 @@ static int			*cpunode_map;
 static int			max_cpu_num;
 
 struct alloc_stat {
-	union {
-		u64	call_site;
-		u64	ptr;
-	};
+	u64	call_site;
+	u64	ptr;
 	u64	bytes_req;
 	u64	bytes_alloc;
 	u32	hit;
+	u32	pingpong;
+
+	short	alloc_cpu;
 
 	struct rb_node node;
 };
@@ -144,16 +145,13 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 	return 0;
 }
 
-static void insert_alloc_stat(unsigned long ptr,
-			      int bytes_req, int bytes_alloc)
+static void insert_alloc_stat(unsigned long call_site, unsigned long ptr,
+			      int bytes_req, int bytes_alloc, int cpu)
 {
 	struct rb_node **node = &root_alloc_stat.rb_node;
 	struct rb_node *parent = NULL;
 	struct alloc_stat *data = NULL;
 
-	if (!alloc_flag)
-		return;
-
 	while (*node) {
 		parent = *node;
 		data = rb_entry(*node, struct alloc_stat, node);
@@ -172,7 +170,10 @@ static void insert_alloc_stat(unsigned long ptr,
 		data->bytes_alloc += bytes_req;
 	} else {
 		data = malloc(sizeof(*data));
+		if (!data)
+			die("malloc");
 		data->ptr = ptr;
+		data->pingpong = 0;
 		data->hit = 1;
 		data->bytes_req = bytes_req;
 		data->bytes_alloc = bytes_alloc;
@@ -180,6 +181,8 @@ static void insert_alloc_stat(unsigned long ptr,
 		rb_link_node(&data->node, parent, node);
 		rb_insert_color(&data->node, &root_alloc_stat);
 	}
+	data->call_site = call_site;
+	data->alloc_cpu = cpu;
 }
 
 static void insert_caller_stat(unsigned long call_site,
@@ -189,9 +192,6 @@ static void insert_caller_stat(unsigned long call_site,
 	struct rb_node *parent = NULL;
 	struct alloc_stat *data = NULL;
 
-	if (!caller_flag)
-		return;
-
 	while (*node) {
 		parent = *node;
 		data = rb_entry(*node, struct alloc_stat, node);
@@ -210,7 +210,10 @@ static void insert_caller_stat(unsigned long call_site,
 		data->bytes_alloc += bytes_req;
 	} else {
 		data = malloc(sizeof(*data));
+		if (!data)
+			die("malloc");
 		data->call_site = call_site;
+		data->pingpong = 0;
 		data->hit = 1;
 		data->bytes_req = bytes_req;
 		data->bytes_alloc = bytes_alloc;
@@ -238,7 +241,7 @@ static void process_alloc_event(struct raw_event_sample *raw,
 	bytes_req = raw_field_value(event, "bytes_req", raw->data);
 	bytes_alloc = raw_field_value(event, "bytes_alloc", raw->data);
 
-	insert_alloc_stat(ptr, bytes_req, bytes_alloc);
+	insert_alloc_stat(call_site, ptr, bytes_req, bytes_alloc, cpu);
 	insert_caller_stat(call_site, bytes_req, bytes_alloc);
 
 	total_requested += bytes_req;
@@ -253,12 +256,58 @@ static void process_alloc_event(struct raw_event_sample *raw,
 	nr_allocs++;
 }
 
-static void process_free_event(struct raw_event_sample *raw __used,
-			       struct event *event __used,
-			       int cpu __used,
+static int ptr_cmp(struct alloc_stat *, struct alloc_stat *);
+static int callsite_cmp(struct alloc_stat *, struct alloc_stat *);
+
+static struct alloc_stat *search_alloc_stat(unsigned long ptr,
+					    unsigned long call_site,
+					    struct rb_root *root,
+					    sort_fn_t sort_fn)
+{
+	struct rb_node *node = root->rb_node;
+	struct alloc_stat key = { .ptr = ptr, .call_site = call_site };
+
+	while (node) {
+		struct alloc_stat *data;
+		int cmp;
+
+		data = rb_entry(node, struct alloc_stat, node);
+
+		cmp = sort_fn(&key, data);
+		if (cmp < 0)
+			node = node->rb_left;
+		else if (cmp > 0)
+			node = node->rb_right;
+		else
+			return data;
+	}
+	return NULL;
+}
+
+static void process_free_event(struct raw_event_sample *raw,
+			       struct event *event,
+			       int cpu,
 			       u64 timestamp __used,
 			       struct thread *thread __used)
 {
+	unsigned long ptr;
+	struct alloc_stat *s_alloc, *s_caller;
+
+	ptr = raw_field_value(event, "ptr", raw->data);
+
+	s_alloc = search_alloc_stat(ptr, 0, &root_alloc_stat, ptr_cmp);
+	if (!s_alloc)
+		return;
+
+	if (cpu != s_alloc->alloc_cpu) {
+		s_alloc->pingpong++;
+
+		s_caller = search_alloc_stat(0, s_alloc->call_site,
+					     &root_caller_stat, callsite_cmp);
+		assert(s_caller);
+		s_caller->pingpong++;
+	}
+	s_alloc->alloc_cpu = -1;
 }
 
 static void
@@ -379,10 +428,10 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 {
 	struct rb_node *next;
 
-	printf("%.78s\n", graph_dotted_line);
-	printf("%-28s|",  is_caller ? "Callsite": "Alloc Ptr");
-	printf("Total_alloc/Per | Total_req/Per | Hit  | Frag\n");
-	printf("%.78s\n", graph_dotted_line);
+	printf("%.102s\n", graph_dotted_line);
+	printf(" %-34s |",  is_caller ? "Callsite": "Alloc Ptr");
+	printf(" Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag\n");
+	printf("%.102s\n", graph_dotted_line);
 
 	next = rb_first(root);
 
@@ -390,7 +439,7 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 		struct alloc_stat *data = rb_entry(next, struct alloc_stat,
 						   node);
 		struct symbol *sym = NULL;
-		char bf[BUFSIZ];
+		char buf[BUFSIZ];
 		u64 addr;
 
 		if (is_caller) {
@@ -402,26 +451,28 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 			addr = data->ptr;
 
 		if (sym != NULL)
-			snprintf(bf, sizeof(bf), "%s+%Lx", sym->name,
+			snprintf(buf, sizeof(buf), "%s+%Lx", sym->name,
 				 addr - sym->start);
 		else
-			snprintf(bf, sizeof(bf), "%#Lx", addr);
+			snprintf(buf, sizeof(buf), "%#Lx", addr);
+		printf(" %-34s |", buf);
 
-		printf("%-28s|%8llu/%-6lu |%8llu/%-6lu|%6lu|%8.3f%%\n",
-		       bf, (unsigned long long)data->bytes_alloc,
+		printf(" %9llu/%-5lu | %9llu/%-5lu | %6lu | %8lu | %6.3f%%\n",
+		       (unsigned long long)data->bytes_alloc,
 		       (unsigned long)data->bytes_alloc / data->hit,
 		       (unsigned long long)data->bytes_req,
 		       (unsigned long)data->bytes_req / data->hit,
 		       (unsigned long)data->hit,
+		       (unsigned long)data->pingpong,
 		       fragmentation(data->bytes_req, data->bytes_alloc));
 
 		next = rb_next(next);
 	}
 
 	if (n_lines == -1)
-		printf(" ...                        | ...            | ...           | ...    | ...   \n");
+		printf(" ...                                | ...             | ...             | ...    | ...      | ...   \n");
 
-	printf("%.78s\n", graph_dotted_line);
+	printf("%.102s\n", graph_dotted_line);
 }
 
 static void print_summary(void)
@@ -597,12 +648,27 @@ static struct sort_dimension frag_sort_dimension = {
 	.cmp	= frag_cmp,
 };
 
+static int pingpong_cmp(struct alloc_stat *l, struct alloc_stat *r)
+{
+	if (l->pingpong < r->pingpong)
+		return -1;
+	else if (l->pingpong > r->pingpong)
+		return 1;
+	return 0;
+}
+
+static struct sort_dimension pingpong_sort_dimension = {
+	.name	= "pingpong",
+	.cmp	= pingpong_cmp,
+};
+
 static struct sort_dimension *avail_sorts[] = {
 	&ptr_sort_dimension,
 	&callsite_sort_dimension,
 	&hit_sort_dimension,
 	&bytes_sort_dimension,
 	&frag_sort_dimension,
+	&pingpong_sort_dimension,
 };
 
 #define NUM_AVAIL_SORTS	\
@@ -703,7 +769,7 @@ static const struct option kmem_options[] = {
 		     "stat selector, Pass 'alloc' or 'caller'.",
 		     parse_stat_opt),
 	OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
-		     "sort by key(s): ptr, call_site, bytes, hit, frag",
+		     "sort by keys: ptr, call_site, bytes, hit, pingpong, frag",
 		     parse_sort_opt),
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",

^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites
@ 2009-11-24 16:55     ` tip-bot for Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:55 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  079d3f653134e2f2ac99dae28b08c0cc64268103
Gitweb:     http://git.kernel.org/tip/079d3f653134e2f2ac99dae28b08c0cc64268103
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:26:55 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:50 +0100

perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites

Show statistics for allocations and frees on different cpus:

------------------------------------------------------------------------------------------------------
Callsite                           | Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag
------------------------------------------------------------------------------------------------------
 perf_event_alloc.clone.0+0         |      7504/682   |      7128/648   |     11 |        0 |  5.011%
 alloc_buffer_head+16               |       288/57    |       280/56    |      5 |        0 |  2.778%
 radix_tree_preload+51              |       296/296   |       288/288   |      1 |        0 |  2.703%
 tracepoint_add_probe+32e           |       157/31    |       154/30    |      5 |        0 |  1.911%
 do_maps_open+0                     |       796/12    |       792/12    |     66 |        0 |  0.503%
 sock_alloc_send_pskb+16e           |     23780/495   |     23744/494   |     48 |       38 |  0.151%
 anon_vma_prepare+9a                |      3744/44    |      3740/44    |     85 |        0 |  0.107%
 d_alloc+21                         |     64948/164   |     64944/164   |    396 |        0 |  0.006%
 proc_alloc_inode+23                |    262292/676   |    262288/676   |    388 |        0 |  0.002%
 create_object+28                   |    459600/200   |    459600/200   |   2298 |       71 |  0.000%
 journal_start+67                   |     14440/40    |     14440/40    |    361 |        0 |  0.000%
 get_empty_filp+df                  |     53504/256   |     53504/256   |    209 |        0 |  0.000%
 getname+2a                         |    823296/4096  |    823296/4096  |    201 |        0 |  0.000%
 seq_read+2b0                       |    544768/4096  |    544768/4096  |    133 |        0 |  0.000%
 seq_open+6d                        |     17024/128   |     17024/128   |    133 |        0 |  0.000%
 mmap_region+2e6                    |     11704/88    |     11704/88    |    133 |        0 |  0.000%
 single_open+0                      |      1072/16    |      1072/16    |     67 |        0 |  0.000%
 __alloc_skb+2e                     |     12544/256   |     12544/256   |     49 |       38 |  0.000%
 __sigqueue_alloc+4a                |      1296/144   |      1296/144   |      9 |        8 |  0.000%
 tracepoint_add_probe+6f            |        80/16    |        80/16    |      5 |        0 |  0.000%
------------------------------------------------------------------------------------------------------
...

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6E9F.6020309@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-kmem.c |  122 ++++++++++++++++++++++++++++++++++----------
 1 files changed, 94 insertions(+), 28 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1ecf3f4..173d6db 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -40,13 +40,14 @@ static int			*cpunode_map;
 static int			max_cpu_num;
 
 struct alloc_stat {
-	union {
-		u64	call_site;
-		u64	ptr;
-	};
+	u64	call_site;
+	u64	ptr;
 	u64	bytes_req;
 	u64	bytes_alloc;
 	u32	hit;
+	u32	pingpong;
+
+	short	alloc_cpu;
 
 	struct rb_node node;
 };
@@ -144,16 +145,13 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 	return 0;
 }
 
-static void insert_alloc_stat(unsigned long ptr,
-			      int bytes_req, int bytes_alloc)
+static void insert_alloc_stat(unsigned long call_site, unsigned long ptr,
+			      int bytes_req, int bytes_alloc, int cpu)
 {
 	struct rb_node **node = &root_alloc_stat.rb_node;
 	struct rb_node *parent = NULL;
 	struct alloc_stat *data = NULL;
 
-	if (!alloc_flag)
-		return;
-
 	while (*node) {
 		parent = *node;
 		data = rb_entry(*node, struct alloc_stat, node);
@@ -172,7 +170,10 @@ static void insert_alloc_stat(unsigned long ptr,
 		data->bytes_alloc += bytes_req;
 	} else {
 		data = malloc(sizeof(*data));
+		if (!data)
+			die("malloc");
 		data->ptr = ptr;
+		data->pingpong = 0;
 		data->hit = 1;
 		data->bytes_req = bytes_req;
 		data->bytes_alloc = bytes_alloc;
@@ -180,6 +181,8 @@ static void insert_alloc_stat(unsigned long ptr,
 		rb_link_node(&data->node, parent, node);
 		rb_insert_color(&data->node, &root_alloc_stat);
 	}
+	data->call_site = call_site;
+	data->alloc_cpu = cpu;
 }
 
 static void insert_caller_stat(unsigned long call_site,
@@ -189,9 +192,6 @@ static void insert_caller_stat(unsigned long call_site,
 	struct rb_node *parent = NULL;
 	struct alloc_stat *data = NULL;
 
-	if (!caller_flag)
-		return;
-
 	while (*node) {
 		parent = *node;
 		data = rb_entry(*node, struct alloc_stat, node);
@@ -210,7 +210,10 @@ static void insert_caller_stat(unsigned long call_site,
 		data->bytes_alloc += bytes_req;
 	} else {
 		data = malloc(sizeof(*data));
+		if (!data)
+			die("malloc");
 		data->call_site = call_site;
+		data->pingpong = 0;
 		data->hit = 1;
 		data->bytes_req = bytes_req;
 		data->bytes_alloc = bytes_alloc;
@@ -238,7 +241,7 @@ static void process_alloc_event(struct raw_event_sample *raw,
 	bytes_req = raw_field_value(event, "bytes_req", raw->data);
 	bytes_alloc = raw_field_value(event, "bytes_alloc", raw->data);
 
-	insert_alloc_stat(ptr, bytes_req, bytes_alloc);
+	insert_alloc_stat(call_site, ptr, bytes_req, bytes_alloc, cpu);
 	insert_caller_stat(call_site, bytes_req, bytes_alloc);
 
 	total_requested += bytes_req;
@@ -253,12 +256,58 @@ static void process_alloc_event(struct raw_event_sample *raw,
 	nr_allocs++;
 }
 
-static void process_free_event(struct raw_event_sample *raw __used,
-			       struct event *event __used,
-			       int cpu __used,
+static int ptr_cmp(struct alloc_stat *, struct alloc_stat *);
+static int callsite_cmp(struct alloc_stat *, struct alloc_stat *);
+
+static struct alloc_stat *search_alloc_stat(unsigned long ptr,
+					    unsigned long call_site,
+					    struct rb_root *root,
+					    sort_fn_t sort_fn)
+{
+	struct rb_node *node = root->rb_node;
+	struct alloc_stat key = { .ptr = ptr, .call_site = call_site };
+
+	while (node) {
+		struct alloc_stat *data;
+		int cmp;
+
+		data = rb_entry(node, struct alloc_stat, node);
+
+		cmp = sort_fn(&key, data);
+		if (cmp < 0)
+			node = node->rb_left;
+		else if (cmp > 0)
+			node = node->rb_right;
+		else
+			return data;
+	}
+	return NULL;
+}
+
+static void process_free_event(struct raw_event_sample *raw,
+			       struct event *event,
+			       int cpu,
 			       u64 timestamp __used,
 			       struct thread *thread __used)
 {
+	unsigned long ptr;
+	struct alloc_stat *s_alloc, *s_caller;
+
+	ptr = raw_field_value(event, "ptr", raw->data);
+
+	s_alloc = search_alloc_stat(ptr, 0, &root_alloc_stat, ptr_cmp);
+	if (!s_alloc)
+		return;
+
+	if (cpu != s_alloc->alloc_cpu) {
+		s_alloc->pingpong++;
+
+		s_caller = search_alloc_stat(0, s_alloc->call_site,
+					     &root_caller_stat, callsite_cmp);
+		assert(s_caller);
+		s_caller->pingpong++;
+	}
+	s_alloc->alloc_cpu = -1;
 }
 
 static void
@@ -379,10 +428,10 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 {
 	struct rb_node *next;
 
-	printf("%.78s\n", graph_dotted_line);
-	printf("%-28s|",  is_caller ? "Callsite": "Alloc Ptr");
-	printf("Total_alloc/Per | Total_req/Per | Hit  | Frag\n");
-	printf("%.78s\n", graph_dotted_line);
+	printf("%.102s\n", graph_dotted_line);
+	printf(" %-34s |",  is_caller ? "Callsite": "Alloc Ptr");
+	printf(" Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag\n");
+	printf("%.102s\n", graph_dotted_line);
 
 	next = rb_first(root);
 
@@ -390,7 +439,7 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 		struct alloc_stat *data = rb_entry(next, struct alloc_stat,
 						   node);
 		struct symbol *sym = NULL;
-		char bf[BUFSIZ];
+		char buf[BUFSIZ];
 		u64 addr;
 
 		if (is_caller) {
@@ -402,26 +451,28 @@ static void __print_result(struct rb_root *root, int n_lines, int is_caller)
 			addr = data->ptr;
 
 		if (sym != NULL)
-			snprintf(bf, sizeof(bf), "%s+%Lx", sym->name,
+			snprintf(buf, sizeof(buf), "%s+%Lx", sym->name,
 				 addr - sym->start);
 		else
-			snprintf(bf, sizeof(bf), "%#Lx", addr);
+			snprintf(buf, sizeof(buf), "%#Lx", addr);
+		printf(" %-34s |", buf);
 
-		printf("%-28s|%8llu/%-6lu |%8llu/%-6lu|%6lu|%8.3f%%\n",
-		       bf, (unsigned long long)data->bytes_alloc,
+		printf(" %9llu/%-5lu | %9llu/%-5lu | %6lu | %8lu | %6.3f%%\n",
+		       (unsigned long long)data->bytes_alloc,
 		       (unsigned long)data->bytes_alloc / data->hit,
 		       (unsigned long long)data->bytes_req,
 		       (unsigned long)data->bytes_req / data->hit,
 		       (unsigned long)data->hit,
+		       (unsigned long)data->pingpong,
 		       fragmentation(data->bytes_req, data->bytes_alloc));
 
 		next = rb_next(next);
 	}
 
 	if (n_lines == -1)
-		printf(" ...                        | ...            | ...           | ...    | ...   \n");
+		printf(" ...                                | ...             | ...             | ...    | ...      | ...   \n");
 
-	printf("%.78s\n", graph_dotted_line);
+	printf("%.102s\n", graph_dotted_line);
 }
 
 static void print_summary(void)
@@ -597,12 +648,27 @@ static struct sort_dimension frag_sort_dimension = {
 	.cmp	= frag_cmp,
 };
 
+static int pingpong_cmp(struct alloc_stat *l, struct alloc_stat *r)
+{
+	if (l->pingpong < r->pingpong)
+		return -1;
+	else if (l->pingpong > r->pingpong)
+		return 1;
+	return 0;
+}
+
+static struct sort_dimension pingpong_sort_dimension = {
+	.name	= "pingpong",
+	.cmp	= pingpong_cmp,
+};
+
 static struct sort_dimension *avail_sorts[] = {
 	&ptr_sort_dimension,
 	&callsite_sort_dimension,
 	&hit_sort_dimension,
 	&bytes_sort_dimension,
 	&frag_sort_dimension,
+	&pingpong_sort_dimension,
 };
 
 #define NUM_AVAIL_SORTS	\
@@ -703,7 +769,7 @@ static const struct option kmem_options[] = {
 		     "stat selector, Pass 'alloc' or 'caller'.",
 		     parse_stat_opt),
 	OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
-		     "sort by key(s): ptr, call_site, bytes, hit, frag",
+		     "sort by keys: ptr, call_site, bytes, hit, pingpong, frag",
 		     parse_sort_opt),
 	OPT_CALLBACK('l', "line", NULL, "num",
 		     "show n lins",

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [PATCH 5/5] perf kmem: Add help file
  2009-11-24  5:25 ` Li Zefan
@ 2009-11-24  5:27   ` Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:27 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Add Documentation/perf-kmem.txt

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/Documentation/perf-kmem.txt |   44 ++++++++++++++++++++++++++++++++
 tools/perf/command-list.txt            |    1 +
 2 files changed, 45 insertions(+), 0 deletions(-)
 create mode 100644 tools/perf/Documentation/perf-kmem.txt

diff --git a/tools/perf/Documentation/perf-kmem.txt b/tools/perf/Documentation/perf-kmem.txt
new file mode 100644
index 0000000..44b0ce3
--- /dev/null
+++ b/tools/perf/Documentation/perf-kmem.txt
@@ -0,0 +1,44 @@
+perf-kmem(1)
+==============
+
+NAME
+----
+perf-kmem - Tool to trace/measure kernel memory(slab) properties
+
+SYNOPSIS
+--------
+[verse]
+'perf kmem' {record} [<options>]
+
+DESCRIPTION
+-----------
+There's two variants of perf kmem:
+
+  'perf kmem record <command>' to record the kmem events
+  of an arbitrary workload.
+
+  'perf kmem' to report kernel memory statistics.
+
+OPTIONS
+-------
+-i <file>::
+--input=<file>::
+	Select the input file (default: perf.data)
+
+--stat=<caller|alloc>::
+	Select per callsite or per allocation statistics
+
+-s <key[,key2...]>::
+--sort=<key[,key2...]>::
+	Sort the output (default: frag,hit,bytes)
+
+-l <num>::
+--line=<num>::
+	Print n lines only
+
+--raw-ip::
+	Print raw ip instead of symbol
+
+SEE ALSO
+--------
+linkperf:perf-record[1]
diff --git a/tools/perf/command-list.txt b/tools/perf/command-list.txt
index d3a6e18..02b09ea 100644
--- a/tools/perf/command-list.txt
+++ b/tools/perf/command-list.txt
@@ -14,3 +14,4 @@ perf-timechart			mainporcelain common
 perf-top			mainporcelain common
 perf-trace			mainporcelain common
 perf-probe			mainporcelain common
+perf-kmem			mainporcelain common
-- 
1.6.3


^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [PATCH 5/5] perf kmem: Add help file
@ 2009-11-24  5:27   ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  5:27 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Add Documentation/perf-kmem.txt

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
 tools/perf/Documentation/perf-kmem.txt |   44 ++++++++++++++++++++++++++++++++
 tools/perf/command-list.txt            |    1 +
 2 files changed, 45 insertions(+), 0 deletions(-)
 create mode 100644 tools/perf/Documentation/perf-kmem.txt

diff --git a/tools/perf/Documentation/perf-kmem.txt b/tools/perf/Documentation/perf-kmem.txt
new file mode 100644
index 0000000..44b0ce3
--- /dev/null
+++ b/tools/perf/Documentation/perf-kmem.txt
@@ -0,0 +1,44 @@
+perf-kmem(1)
+==============
+
+NAME
+----
+perf-kmem - Tool to trace/measure kernel memory(slab) properties
+
+SYNOPSIS
+--------
+[verse]
+'perf kmem' {record} [<options>]
+
+DESCRIPTION
+-----------
+There's two variants of perf kmem:
+
+  'perf kmem record <command>' to record the kmem events
+  of an arbitrary workload.
+
+  'perf kmem' to report kernel memory statistics.
+
+OPTIONS
+-------
+-i <file>::
+--input=<file>::
+	Select the input file (default: perf.data)
+
+--stat=<caller|alloc>::
+	Select per callsite or per allocation statistics
+
+-s <key[,key2...]>::
+--sort=<key[,key2...]>::
+	Sort the output (default: frag,hit,bytes)
+
+-l <num>::
+--line=<num>::
+	Print n lines only
+
+--raw-ip::
+	Print raw ip instead of symbol
+
+SEE ALSO
+--------
+linkperf:perf-record[1]
diff --git a/tools/perf/command-list.txt b/tools/perf/command-list.txt
index d3a6e18..02b09ea 100644
--- a/tools/perf/command-list.txt
+++ b/tools/perf/command-list.txt
@@ -14,3 +14,4 @@ perf-timechart			mainporcelain common
 perf-top			mainporcelain common
 perf-trace			mainporcelain common
 perf-probe			mainporcelain common
+perf-kmem			mainporcelain common
-- 
1.6.3

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf kmem: Add help file
  2009-11-24  5:27   ` Li Zefan
@ 2009-11-24 16:55     ` tip-bot for Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:55 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  b23d5767a5818caec8547d0bce1588b02bdecd30
Gitweb:     http://git.kernel.org/tip/b23d5767a5818caec8547d0bce1588b02bdecd30
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:27:11 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:51 +0100

perf kmem: Add help file

Add Documentation/perf-kmem.txt

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6EAF.80802@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/Documentation/perf-kmem.txt |   44 ++++++++++++++++++++++++++++++++
 tools/perf/command-list.txt            |    1 +
 2 files changed, 45 insertions(+), 0 deletions(-)

diff --git a/tools/perf/Documentation/perf-kmem.txt b/tools/perf/Documentation/perf-kmem.txt
new file mode 100644
index 0000000..44b0ce3
--- /dev/null
+++ b/tools/perf/Documentation/perf-kmem.txt
@@ -0,0 +1,44 @@
+perf-kmem(1)
+==============
+
+NAME
+----
+perf-kmem - Tool to trace/measure kernel memory(slab) properties
+
+SYNOPSIS
+--------
+[verse]
+'perf kmem' {record} [<options>]
+
+DESCRIPTION
+-----------
+There's two variants of perf kmem:
+
+  'perf kmem record <command>' to record the kmem events
+  of an arbitrary workload.
+
+  'perf kmem' to report kernel memory statistics.
+
+OPTIONS
+-------
+-i <file>::
+--input=<file>::
+	Select the input file (default: perf.data)
+
+--stat=<caller|alloc>::
+	Select per callsite or per allocation statistics
+
+-s <key[,key2...]>::
+--sort=<key[,key2...]>::
+	Sort the output (default: frag,hit,bytes)
+
+-l <num>::
+--line=<num>::
+	Print n lines only
+
+--raw-ip::
+	Print raw ip instead of symbol
+
+SEE ALSO
+--------
+linkperf:perf-record[1]
diff --git a/tools/perf/command-list.txt b/tools/perf/command-list.txt
index d3a6e18..02b09ea 100644
--- a/tools/perf/command-list.txt
+++ b/tools/perf/command-list.txt
@@ -14,3 +14,4 @@ perf-timechart			mainporcelain common
 perf-top			mainporcelain common
 perf-trace			mainporcelain common
 perf-probe			mainporcelain common
+perf-kmem			mainporcelain common

^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf kmem: Add help file
@ 2009-11-24 16:55     ` tip-bot for Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: tip-bot for Li Zefan @ 2009-11-24 16:55 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, hpa, mingo, penberg, lizf, peterz, eduard.munteanu,
	fweisbec, tglx, linux-mm, mingo

Commit-ID:  b23d5767a5818caec8547d0bce1588b02bdecd30
Gitweb:     http://git.kernel.org/tip/b23d5767a5818caec8547d0bce1588b02bdecd30
Author:     Li Zefan <lizf@cn.fujitsu.com>
AuthorDate: Tue, 24 Nov 2009 13:27:11 +0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 08:49:51 +0100

perf kmem: Add help file

Add Documentation/perf-kmem.txt

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6EAF.80802@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 tools/perf/Documentation/perf-kmem.txt |   44 ++++++++++++++++++++++++++++++++
 tools/perf/command-list.txt            |    1 +
 2 files changed, 45 insertions(+), 0 deletions(-)

diff --git a/tools/perf/Documentation/perf-kmem.txt b/tools/perf/Documentation/perf-kmem.txt
new file mode 100644
index 0000000..44b0ce3
--- /dev/null
+++ b/tools/perf/Documentation/perf-kmem.txt
@@ -0,0 +1,44 @@
+perf-kmem(1)
+==============
+
+NAME
+----
+perf-kmem - Tool to trace/measure kernel memory(slab) properties
+
+SYNOPSIS
+--------
+[verse]
+'perf kmem' {record} [<options>]
+
+DESCRIPTION
+-----------
+There's two variants of perf kmem:
+
+  'perf kmem record <command>' to record the kmem events
+  of an arbitrary workload.
+
+  'perf kmem' to report kernel memory statistics.
+
+OPTIONS
+-------
+-i <file>::
+--input=<file>::
+	Select the input file (default: perf.data)
+
+--stat=<caller|alloc>::
+	Select per callsite or per allocation statistics
+
+-s <key[,key2...]>::
+--sort=<key[,key2...]>::
+	Sort the output (default: frag,hit,bytes)
+
+-l <num>::
+--line=<num>::
+	Print n lines only
+
+--raw-ip::
+	Print raw ip instead of symbol
+
+SEE ALSO
+--------
+linkperf:perf-record[1]
diff --git a/tools/perf/command-list.txt b/tools/perf/command-list.txt
index d3a6e18..02b09ea 100644
--- a/tools/perf/command-list.txt
+++ b/tools/perf/command-list.txt
@@ -14,3 +14,4 @@ perf-timechart			mainporcelain common
 perf-top			mainporcelain common
 perf-trace			mainporcelain common
 perf-probe			mainporcelain common
+perf-kmem			mainporcelain common

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To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply related	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more  statistics
  2009-11-24  5:25 ` Li Zefan
@ 2009-11-24  7:15   ` Pekka Enberg
  -1 siblings, 0 replies; 53+ messages in thread
From: Pekka Enberg @ 2009-11-24  7:15 UTC (permalink / raw)
  To: Li Zefan
  Cc: Ingo Molnar, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Hi Li,

On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> Pekka, do you think we can remove kmemtrace now?

One more use case I forgot to mention: boot time tracing. Much of the
persistent kernel memory footprint comes from the boot process which
is why it's important to be able to trace memory allocations
immediately after kmem_cache_init() has run. Can we make "perf kmem"
do that? Eduard put most of his efforts into making that work for
kmemtrace.

On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> With kmem trace events, low-level analyzing can be done using
> ftrace, and high-level analyzing can be done using perf-kmem.
>
> And chance is, more people may use and improve perf-kmem, and it
> will be well-maintained within the perf infrastructure. On the
> other hand, I guess few people use and contribute to kmemtrace-user.

Sure, I think "perf kmem" is the way forward. I'd love to hear
Eduard's comments on this before we remove the code from kernel. Do we
need to do that for 2.6.33 or can we postpone that for 2.6.34?

                        Pekka

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  7:15   ` Pekka Enberg
  0 siblings, 0 replies; 53+ messages in thread
From: Pekka Enberg @ 2009-11-24  7:15 UTC (permalink / raw)
  To: Li Zefan
  Cc: Ingo Molnar, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Hi Li,

On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> Pekka, do you think we can remove kmemtrace now?

One more use case I forgot to mention: boot time tracing. Much of the
persistent kernel memory footprint comes from the boot process which
is why it's important to be able to trace memory allocations
immediately after kmem_cache_init() has run. Can we make "perf kmem"
do that? Eduard put most of his efforts into making that work for
kmemtrace.

On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> With kmem trace events, low-level analyzing can be done using
> ftrace, and high-level analyzing can be done using perf-kmem.
>
> And chance is, more people may use and improve perf-kmem, and it
> will be well-maintained within the perf infrastructure. On the
> other hand, I guess few people use and contribute to kmemtrace-user.

Sure, I think "perf kmem" is the way forward. I'd love to hear
Eduard's comments on this before we remove the code from kernel. Do we
need to do that for 2.6.33 or can we postpone that for 2.6.34?

                        Pekka

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24  7:15   ` Pekka Enberg
@ 2009-11-24  7:34     ` Ingo Molnar
  -1 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24  7:34 UTC (permalink / raw)
  To: Pekka Enberg, Arjan van de Ven
  Cc: Li Zefan, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

* Pekka Enberg <penberg@cs.helsinki.fi> wrote:

> Hi Li,
> 
> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> > Pekka, do you think we can remove kmemtrace now?
> 
> One more use case I forgot to mention: boot time tracing. Much of the 
> persistent kernel memory footprint comes from the boot process which 
> is why it's important to be able to trace memory allocations 
> immediately after kmem_cache_init() has run. Can we make "perf kmem" 
> do that? Eduard put most of his efforts into making that work for 
> kmemtrace.

Would be lovely if someone looked at perf from that angle (and extended 
it).

Another interesting area would be to allow a capture session without a 
process context running immediately. (i.e. pre-allocate all the buffers, 
use them, for a later 'perf save' to pick it up.)

The two are kind of the same thing conceptually: a boot time trace is a 
preallocated 'process context less' recording, to be picked up after 
bootup.

[ It also brings us 'stability/persistency of event logging' - i.e. a 
  capture session could be started and guaranteed by the kernel to be 
  underway, regardless of what user-space does. ]

Btw., Arjan is doing a _lot_ of boot time tracing for Moblin, and he 
indicated it in the past that starting a perf recording session from an 
initrd is a pretty practical substitute as well. (I've Cc:-ed Arjan.)

> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
>
> > With kmem trace events, low-level analyzing can be done using 
> > ftrace, and high-level analyzing can be done using perf-kmem.
> >
> > And chance is, more people may use and improve perf-kmem, and it 
> > will be well-maintained within the perf infrastructure. On the other 
> > hand, I guess few people use and contribute to kmemtrace-user.
> 
> Sure, I think "perf kmem" is the way forward. I'd love to hear 
> Eduard's comments on this before we remove the code from kernel. Do we 
> need to do that for 2.6.33 or can we postpone that for 2.6.34?

Certainly we can postpone it, as long as there's rough strategic 
consensus on the way forward. I'd hate to have two overlapping core 
kernel facilities and friction between the groups pursuing them and 
constant distraction from having two targets.

Such situations just rarely end with a good solution for the user - see 
security modules for a horror story ...

[ I dont think it will occur here, just wanted to mention it out of
  abundance of caution that 1.5 decades of kernel hacking experience 
  inflicts on me ;-) ]

	Ingo

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  7:34     ` Ingo Molnar
  0 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24  7:34 UTC (permalink / raw)
  To: Pekka Enberg, Arjan van de Ven
  Cc: Li Zefan, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

* Pekka Enberg <penberg@cs.helsinki.fi> wrote:

> Hi Li,
> 
> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> > Pekka, do you think we can remove kmemtrace now?
> 
> One more use case I forgot to mention: boot time tracing. Much of the 
> persistent kernel memory footprint comes from the boot process which 
> is why it's important to be able to trace memory allocations 
> immediately after kmem_cache_init() has run. Can we make "perf kmem" 
> do that? Eduard put most of his efforts into making that work for 
> kmemtrace.

Would be lovely if someone looked at perf from that angle (and extended 
it).

Another interesting area would be to allow a capture session without a 
process context running immediately. (i.e. pre-allocate all the buffers, 
use them, for a later 'perf save' to pick it up.)

The two are kind of the same thing conceptually: a boot time trace is a 
preallocated 'process context less' recording, to be picked up after 
bootup.

[ It also brings us 'stability/persistency of event logging' - i.e. a 
  capture session could be started and guaranteed by the kernel to be 
  underway, regardless of what user-space does. ]

Btw., Arjan is doing a _lot_ of boot time tracing for Moblin, and he 
indicated it in the past that starting a perf recording session from an 
initrd is a pretty practical substitute as well. (I've Cc:-ed Arjan.)

> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
>
> > With kmem trace events, low-level analyzing can be done using 
> > ftrace, and high-level analyzing can be done using perf-kmem.
> >
> > And chance is, more people may use and improve perf-kmem, and it 
> > will be well-maintained within the perf infrastructure. On the other 
> > hand, I guess few people use and contribute to kmemtrace-user.
> 
> Sure, I think "perf kmem" is the way forward. I'd love to hear 
> Eduard's comments on this before we remove the code from kernel. Do we 
> need to do that for 2.6.33 or can we postpone that for 2.6.34?

Certainly we can postpone it, as long as there's rough strategic 
consensus on the way forward. I'd hate to have two overlapping core 
kernel facilities and friction between the groups pursuing them and 
constant distraction from having two targets.

Such situations just rarely end with a good solution for the user - see 
security modules for a horror story ...

[ I dont think it will occur here, just wanted to mention it out of
  abundance of caution that 1.5 decades of kernel hacking experience 
  inflicts on me ;-) ]

	Ingo

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more  statistics
  2009-11-24  7:34     ` Ingo Molnar
@ 2009-11-24  7:45       ` Pekka Enberg
  -1 siblings, 0 replies; 53+ messages in thread
From: Pekka Enberg @ 2009-11-24  7:45 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Arjan van de Ven, Li Zefan, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm

Hi Ingo,

On Tue, Nov 24, 2009 at 9:34 AM, Ingo Molnar <mingo@elte.hu> wrote:
> Certainly we can postpone it, as long as there's rough strategic
> consensus on the way forward. I'd hate to have two overlapping core
> kernel facilities and friction between the groups pursuing them and
> constant distraction from having two targets.

Sure, like I said, I think "kmem perf" is the way forward. The only
reason we did kmemtrace userspace out-of-tree was because there was no
perf (or ftrace!) at the time and there wasn't much interest in
putting userspace tools in the tree.

I hope that counts as a "rough strategic consensus" :-)

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  7:45       ` Pekka Enberg
  0 siblings, 0 replies; 53+ messages in thread
From: Pekka Enberg @ 2009-11-24  7:45 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Arjan van de Ven, Li Zefan, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm

Hi Ingo,

On Tue, Nov 24, 2009 at 9:34 AM, Ingo Molnar <mingo@elte.hu> wrote:
> Certainly we can postpone it, as long as there's rough strategic
> consensus on the way forward. I'd hate to have two overlapping core
> kernel facilities and friction between the groups pursuing them and
> constant distraction from having two targets.

Sure, like I said, I think "kmem perf" is the way forward. The only
reason we did kmemtrace userspace out-of-tree was because there was no
perf (or ftrace!) at the time and there wasn't much interest in
putting userspace tools in the tree.

I hope that counts as a "rough strategic consensus" :-)

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
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^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24  7:45       ` Pekka Enberg
@ 2009-11-24  7:47         ` Ingo Molnar
  -1 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24  7:47 UTC (permalink / raw)
  To: Pekka Enberg
  Cc: Arjan van de Ven, Li Zefan, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm


* Pekka Enberg <penberg@cs.helsinki.fi> wrote:

> Hi Ingo,
> 
> On Tue, Nov 24, 2009 at 9:34 AM, Ingo Molnar <mingo@elte.hu> wrote:
> > Certainly we can postpone it, as long as there's rough strategic
> > consensus on the way forward. I'd hate to have two overlapping core
> > kernel facilities and friction between the groups pursuing them and
> > constant distraction from having two targets.
> 
> Sure, like I said, I think "kmem perf" is the way forward. The only 
> reason we did kmemtrace userspace out-of-tree was because there was no 
> perf (or ftrace!) at the time and there wasn't much interest in 
> putting userspace tools in the tree.
> 
> I hope that counts as a "rough strategic consensus" :-)

it does :-)

	Ingo

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  7:47         ` Ingo Molnar
  0 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24  7:47 UTC (permalink / raw)
  To: Pekka Enberg
  Cc: Arjan van de Ven, Li Zefan, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm


* Pekka Enberg <penberg@cs.helsinki.fi> wrote:

> Hi Ingo,
> 
> On Tue, Nov 24, 2009 at 9:34 AM, Ingo Molnar <mingo@elte.hu> wrote:
> > Certainly we can postpone it, as long as there's rough strategic
> > consensus on the way forward. I'd hate to have two overlapping core
> > kernel facilities and friction between the groups pursuing them and
> > constant distraction from having two targets.
> 
> Sure, like I said, I think "kmem perf" is the way forward. The only 
> reason we did kmemtrace userspace out-of-tree was because there was no 
> perf (or ftrace!) at the time and there wasn't much interest in 
> putting userspace tools in the tree.
> 
> I hope that counts as a "rough strategic consensus" :-)

it does :-)

	Ingo

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
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^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24  7:34     ` Ingo Molnar
@ 2009-11-24  8:04       ` Li Zefan
  -1 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  8:04 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Arjan van de Ven, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm

Ingo Molnar wrote:
> * Pekka Enberg <penberg@cs.helsinki.fi> wrote:
> 
>> Hi Li,
>>
>> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
>>> Pekka, do you think we can remove kmemtrace now?
>> One more use case I forgot to mention: boot time tracing. Much of the 
>> persistent kernel memory footprint comes from the boot process which 
>> is why it's important to be able to trace memory allocations 
>> immediately after kmem_cache_init() has run. Can we make "perf kmem" 
>> do that? Eduard put most of his efforts into making that work for 
>> kmemtrace.
> 
> Would be lovely if someone looked at perf from that angle (and extended 
> it).
> 
> Another interesting area would be to allow a capture session without a 
> process context running immediately. (i.e. pre-allocate all the buffers, 
> use them, for a later 'perf save' to pick it up.)
> 
> The two are kind of the same thing conceptually: a boot time trace is a 
> preallocated 'process context less' recording, to be picked up after 
> bootup.
> 
> [ It also brings us 'stability/persistency of event logging' - i.e. a 
>   capture session could be started and guaranteed by the kernel to be 
>   underway, regardless of what user-space does. ]
> 
> Btw., Arjan is doing a _lot_ of boot time tracing for Moblin, and he 
> indicated it in the past that starting a perf recording session from an 
> initrd is a pretty practical substitute as well. (I've Cc:-ed Arjan.)
> 

It would be great if perf can be used for boot time tracing. This needs
pretty big work on kernel side.

>> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
>>
>>> With kmem trace events, low-level analyzing can be done using 
>>> ftrace, and high-level analyzing can be done using perf-kmem.
>>>
>>> And chance is, more people may use and improve perf-kmem, and it 
>>> will be well-maintained within the perf infrastructure. On the other 
>>> hand, I guess few people use and contribute to kmemtrace-user.
>> Sure, I think "perf kmem" is the way forward. I'd love to hear 
>> Eduard's comments on this before we remove the code from kernel. Do we 
>> need to do that for 2.6.33 or can we postpone that for 2.6.34?
> 
> Certainly we can postpone it, as long as there's rough strategic 
> consensus on the way forward. I'd hate to have two overlapping core 
> kernel facilities and friction between the groups pursuing them and 
> constant distraction from having two targets.
> 
> Such situations just rarely end with a good solution for the user - see 
> security modules for a horror story ...
> 
> [ I dont think it will occur here, just wanted to mention it out of
>   abundance of caution that 1.5 decades of kernel hacking experience 
>   inflicts on me ;-) ]
> 

Yeah, so we'd like to remove most of tracers, but I'm not rushing to
remove kmemtrace for .33.


^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  8:04       ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  8:04 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Arjan van de Ven, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm

Ingo Molnar wrote:
> * Pekka Enberg <penberg@cs.helsinki.fi> wrote:
> 
>> Hi Li,
>>
>> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
>>> Pekka, do you think we can remove kmemtrace now?
>> One more use case I forgot to mention: boot time tracing. Much of the 
>> persistent kernel memory footprint comes from the boot process which 
>> is why it's important to be able to trace memory allocations 
>> immediately after kmem_cache_init() has run. Can we make "perf kmem" 
>> do that? Eduard put most of his efforts into making that work for 
>> kmemtrace.
> 
> Would be lovely if someone looked at perf from that angle (and extended 
> it).
> 
> Another interesting area would be to allow a capture session without a 
> process context running immediately. (i.e. pre-allocate all the buffers, 
> use them, for a later 'perf save' to pick it up.)
> 
> The two are kind of the same thing conceptually: a boot time trace is a 
> preallocated 'process context less' recording, to be picked up after 
> bootup.
> 
> [ It also brings us 'stability/persistency of event logging' - i.e. a 
>   capture session could be started and guaranteed by the kernel to be 
>   underway, regardless of what user-space does. ]
> 
> Btw., Arjan is doing a _lot_ of boot time tracing for Moblin, and he 
> indicated it in the past that starting a perf recording session from an 
> initrd is a pretty practical substitute as well. (I've Cc:-ed Arjan.)
> 

It would be great if perf can be used for boot time tracing. This needs
pretty big work on kernel side.

>> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
>>
>>> With kmem trace events, low-level analyzing can be done using 
>>> ftrace, and high-level analyzing can be done using perf-kmem.
>>>
>>> And chance is, more people may use and improve perf-kmem, and it 
>>> will be well-maintained within the perf infrastructure. On the other 
>>> hand, I guess few people use and contribute to kmemtrace-user.
>> Sure, I think "perf kmem" is the way forward. I'd love to hear 
>> Eduard's comments on this before we remove the code from kernel. Do we 
>> need to do that for 2.6.33 or can we postpone that for 2.6.34?
> 
> Certainly we can postpone it, as long as there's rough strategic 
> consensus on the way forward. I'd hate to have two overlapping core 
> kernel facilities and friction between the groups pursuing them and 
> constant distraction from having two targets.
> 
> Such situations just rarely end with a good solution for the user - see 
> security modules for a horror story ...
> 
> [ I dont think it will occur here, just wanted to mention it out of
>   abundance of caution that 1.5 decades of kernel hacking experience 
>   inflicts on me ;-) ]
> 

Yeah, so we'd like to remove most of tracers, but I'm not rushing to
remove kmemtrace for .33.

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^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24  8:04       ` Li Zefan
@ 2009-11-24  8:34         ` Ingo Molnar
  -1 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24  8:34 UTC (permalink / raw)
  To: Li Zefan
  Cc: Pekka Enberg, Arjan van de Ven, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm


* Li Zefan <lizf@cn.fujitsu.com> wrote:

> Ingo Molnar wrote:
> > * Pekka Enberg <penberg@cs.helsinki.fi> wrote:
> > 
> >> Hi Li,
> >>
> >> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> >>> Pekka, do you think we can remove kmemtrace now?
> >> One more use case I forgot to mention: boot time tracing. Much of the 
> >> persistent kernel memory footprint comes from the boot process which 
> >> is why it's important to be able to trace memory allocations 
> >> immediately after kmem_cache_init() has run. Can we make "perf kmem" 
> >> do that? Eduard put most of his efforts into making that work for 
> >> kmemtrace.
> > 
> > Would be lovely if someone looked at perf from that angle (and extended 
> > it).
> > 
> > Another interesting area would be to allow a capture session without a 
> > process context running immediately. (i.e. pre-allocate all the buffers, 
> > use them, for a later 'perf save' to pick it up.)
> > 
> > The two are kind of the same thing conceptually: a boot time trace is a 
> > preallocated 'process context less' recording, to be picked up after 
> > bootup.
> > 
> > [ It also brings us 'stability/persistency of event logging' - i.e. a 
> >   capture session could be started and guaranteed by the kernel to be 
> >   underway, regardless of what user-space does. ]
> > 
> > Btw., Arjan is doing a _lot_ of boot time tracing for Moblin, and he 
> > indicated it in the past that starting a perf recording session from 
> > an initrd is a pretty practical substitute as well. (I've Cc:-ed 
> > Arjan.)
> 
> It would be great if perf can be used for boot time tracing. This 
> needs pretty big work on kernel side.

What would be needed is to open per cpu events right after perf events 
initializes, and allocate memory for output buffers to them.

They would round-robin after that point, and we could use 
perf_event_open() (with a special flag) to 'attach' to them and mmap() 
them - at which point they'd turn into regular objects with a lot of 
boot time data in them.

Perhaps it should be possible to attach/detach from events in a flexible 
way, not just during bootup. (bootup tracing is just a special case of 
it.)

For example a 'flight recorder' could be started by creating the events 
and then detaching from them. Whenever some exception is flagged the 
monitoring context (whatever task that might be at that time - at 
whatever point in the future) could attach to it and save it to a file 
(or send it over any other transport of choice).

This would IMO mix the best of ftrace with the best of perf, for these 
usecases.

[ Certainly not a feature for the faint hearted :-) ]

	Ingo

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  8:34         ` Ingo Molnar
  0 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24  8:34 UTC (permalink / raw)
  To: Li Zefan
  Cc: Pekka Enberg, Arjan van de Ven, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm


* Li Zefan <lizf@cn.fujitsu.com> wrote:

> Ingo Molnar wrote:
> > * Pekka Enberg <penberg@cs.helsinki.fi> wrote:
> > 
> >> Hi Li,
> >>
> >> On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> >>> Pekka, do you think we can remove kmemtrace now?
> >> One more use case I forgot to mention: boot time tracing. Much of the 
> >> persistent kernel memory footprint comes from the boot process which 
> >> is why it's important to be able to trace memory allocations 
> >> immediately after kmem_cache_init() has run. Can we make "perf kmem" 
> >> do that? Eduard put most of his efforts into making that work for 
> >> kmemtrace.
> > 
> > Would be lovely if someone looked at perf from that angle (and extended 
> > it).
> > 
> > Another interesting area would be to allow a capture session without a 
> > process context running immediately. (i.e. pre-allocate all the buffers, 
> > use them, for a later 'perf save' to pick it up.)
> > 
> > The two are kind of the same thing conceptually: a boot time trace is a 
> > preallocated 'process context less' recording, to be picked up after 
> > bootup.
> > 
> > [ It also brings us 'stability/persistency of event logging' - i.e. a 
> >   capture session could be started and guaranteed by the kernel to be 
> >   underway, regardless of what user-space does. ]
> > 
> > Btw., Arjan is doing a _lot_ of boot time tracing for Moblin, and he 
> > indicated it in the past that starting a perf recording session from 
> > an initrd is a pretty practical substitute as well. (I've Cc:-ed 
> > Arjan.)
> 
> It would be great if perf can be used for boot time tracing. This 
> needs pretty big work on kernel side.

What would be needed is to open per cpu events right after perf events 
initializes, and allocate memory for output buffers to them.

They would round-robin after that point, and we could use 
perf_event_open() (with a special flag) to 'attach' to them and mmap() 
them - at which point they'd turn into regular objects with a lot of 
boot time data in them.

Perhaps it should be possible to attach/detach from events in a flexible 
way, not just during bootup. (bootup tracing is just a special case of 
it.)

For example a 'flight recorder' could be started by creating the events 
and then detaching from them. Whenever some exception is flagged the 
monitoring context (whatever task that might be at that time - at 
whatever point in the future) could attach to it and save it to a file 
(or send it over any other transport of choice).

This would IMO mix the best of ftrace with the best of perf, for these 
usecases.

[ Certainly not a feature for the faint hearted :-) ]

	Ingo

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^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24  8:34         ` Ingo Molnar
@ 2009-11-24 14:57           ` Arjan van de Ven
  -1 siblings, 0 replies; 53+ messages in thread
From: Arjan van de Ven @ 2009-11-24 14:57 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Li Zefan, Pekka Enberg, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm

On Tue, 24 Nov 2009 09:34:23 +0100
Ingo Molnar <mingo@elte.hu> wrote:
> > It would be great if perf can be used for boot time tracing. This 
> > needs pretty big work on kernel side.
> 
> What would be needed is to open per cpu events right after perf
> events initializes, and allocate memory for output buffers to them.
> 
> They would round-robin after that point, and we could use 
> perf_event_open() (with a special flag) to 'attach' to them and
> mmap() them - at which point they'd turn into regular objects with a
> lot of boot time data in them.

I'm not too worried about this btw;
we can start the userland trace early enough in the boot (the kernel is
done after 0.6 seconds after all) to capture the relevant stuff.
The actual kernel mostly gets captured with scripts/bootgraph.pl
already.

Yes it would be nice to do a timechart earlier, but if it's extremely
hard...
Also unless it starts before the drivers (eg the normal driver
initcall level), it is not useful.

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24 14:57           ` Arjan van de Ven
  0 siblings, 0 replies; 53+ messages in thread
From: Arjan van de Ven @ 2009-11-24 14:57 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Li Zefan, Pekka Enberg, Eduard - Gabriel Munteanu,
	Peter Zijlstra, Frederic Weisbecker, LKML, linux-mm

On Tue, 24 Nov 2009 09:34:23 +0100
Ingo Molnar <mingo@elte.hu> wrote:
> > It would be great if perf can be used for boot time tracing. This 
> > needs pretty big work on kernel side.
> 
> What would be needed is to open per cpu events right after perf
> events initializes, and allocate memory for output buffers to them.
> 
> They would round-robin after that point, and we could use 
> perf_event_open() (with a special flag) to 'attach' to them and
> mmap() them - at which point they'd turn into regular objects with a
> lot of boot time data in them.

I'm not too worried about this btw;
we can start the userland trace early enough in the boot (the kernel is
done after 0.6 seconds after all) to capture the relevant stuff.
The actual kernel mostly gets captured with scripts/bootgraph.pl
already.

Yes it would be nice to do a timechart earlier, but if it's extremely
hard...
Also unless it starts before the drivers (eg the normal driver
initcall level), it is not useful.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more  statistics
  2009-11-24  5:25 ` Li Zefan
@ 2009-11-24  7:18   ` Pekka Enberg
  -1 siblings, 0 replies; 53+ messages in thread
From: Pekka Enberg @ 2009-11-24  7:18 UTC (permalink / raw)
  To: Li Zefan
  Cc: Ingo Molnar, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> List of new things:
>
> - Add option "--raw-ip", to print raw ip instead of symbols.
>
> - Sort the output by fragmentation by default, and support
>  multi keys.
>
> - Collect and show cross node allocation stats.
>
> - Collect and show alloc/free ping-pong stats.
>
> - And help file.

The series looks good to me!

Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  7:18   ` Pekka Enberg
  0 siblings, 0 replies; 53+ messages in thread
From: Pekka Enberg @ 2009-11-24  7:18 UTC (permalink / raw)
  To: Li Zefan
  Cc: Ingo Molnar, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

On Tue, Nov 24, 2009 at 7:25 AM, Li Zefan <lizf@cn.fujitsu.com> wrote:
> List of new things:
>
> - Add option "--raw-ip", to print raw ip instead of symbols.
>
> - Sort the output by fragmentation by default, and support
>  multi keys.
>
> - Collect and show cross node allocation stats.
>
> - Collect and show alloc/free ping-pong stats.
>
> - And help file.

The series looks good to me!

Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
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^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24  5:25 ` Li Zefan
                   ` (7 preceding siblings ...)
  (?)
@ 2009-11-24  9:04 ` Ingo Molnar
  2009-11-24  9:38     ` Li Zefan
  -1 siblings, 1 reply; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24  9:04 UTC (permalink / raw)
  To: Li Zefan
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm


a few more UI suggestions for 'perf kmem':

I think it should look similar to how 'perf' and 'perf sched' prints 
sub-commands with increasing specificity, which means that we display a 
list of subcommands and options when typed:

$ perf sched

 usage: perf sched [<options>] {record|latency|map|replay|trace}

    -i, --input <file>    input file name
    -v, --verbose         be more verbose (show symbol address, etc)
    -D, --dump-raw-trace  dump raw trace in ASCII


For 'perf kmem' we could print something like:

$ perf kmem

 usage: perf kmem [<options>] {record|report|trace}

    -i, --input <file>    input file name
    -v, --verbose         be more verbose (show symbol address, etc)
    -D, --dump-raw-trace  dump raw trace in ASCII

The advantage is that right now, when a new user sees the subcommand in 
'perf' output:

 $ perf
 ...
   kmem           Tool to trace/measure kernel memory(slab) properties
 ...

And types 'perf kmem', the following is displayed currently:

 $ perf kmem

 SUMMARY
 =======
 Total bytes requested: 0
 Total bytes allocated: 0
 Total bytes wasted on internal fragmentation: 0
 Internal fragmentation: 0.000000%
 Cross CPU allocations: 0/0

That's not very useful to someone who tries to figure out how to use 
this command. A summary page would be more useful - and that would 
advertise all the commands in a really short summary form (shorter than 
-h/--help).

The other thing is that if someone types 'perf kmem record', the command 
seems 'hung':

 $ perf kmem record
 <hang>

Now if i Ctrl-C it i see that a recording session was going on:

 $ perf kmem record
 ^C[ perf record: Woken up 10 times to write data ]
 [ perf record: Captured and wrote 1.327 MB perf.data (~57984 samples) ]

but this was not apparent from the tool output and the user was left 
wondering about what is going on.

I think at minimum we should print a:

	[ Recording all kmem events in the system, Ctrl-C to stop. ]

line. (on a related note, 'perf sched record' needs such a fix too.)

Another solution would be for 'perf kmem record' to work analogous to 
'perf record': it could display a short help page by default, something 
like:

 $ perf kmem record

  usage: perf kmem record [<options>] [<command>]

  example: perf kmem record -a sleep 10  # capture all events for 10 seconds
           perf kmem record /bin/ls      # capture events of this command
           perf kmem record -p 1234      # capture events of PID 1234

What do you think?

Also, a handful of mini-bugreports wrt. usability:

1)

running 'perf kmem' without having a perf.data gives:

earth4:~/tip/tools/perf> ./perf kmem
Failed to open file: perf.data  (try 'perf record' first)

SUMMARY
=======
Total bytes requested: 0
Total bytes allocated: 0
Total bytes wasted on internal fragmentation: 0
Internal fragmentation: 0.000000%
Cross CPU allocations: 0/0

2)

running 'perf kmem record' on a box without kmem events gives:

earth4:~/tip/tools/perf> ./perf kmem record
invalid or unsupported event: 'kmem:kmalloc'
Run 'perf list' for a list of valid events

i think we want to print something kmem specific - and tell the user how 
to enable kmem events or so - 'perf list' is not a solution to him.

3)

it doesnt seem to be working on one of my boxes, which has perf and kmem 
events as well:

aldebaran:~/linux/linux/tools/perf> perf kmem record
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.050 MB perf.data (~2172 samples) ]

aldebaran:~/linux/linux/tools/perf> perf kmem

SUMMARY
=======
Total bytes requested: 0
Total bytes allocated: 0
Total bytes wasted on internal fragmentation: 0
Internal fragmentation: 0.000000%
Cross CPU allocations: 0/0
aldebaran:~/linux/linux/tools/perf> 

	Ingo

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24  9:04 ` Ingo Molnar
@ 2009-11-24  9:38     ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  9:38 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Ingo Molnar wrote:
> a few more UI suggestions for 'perf kmem':
> 

Thanks for the suggestions!

> I think it should look similar to how 'perf' and 'perf sched' prints 
> sub-commands with increasing specificity, which means that we display a 
> list of subcommands and options when typed:
> 

Yes, I'd like to make the usage and output format similar to perf-sched.

> $ perf sched
> 
>  usage: perf sched [<options>] {record|latency|map|replay|trace}
> 
>     -i, --input <file>    input file name
>     -v, --verbose         be more verbose (show symbol address, etc)
>     -D, --dump-raw-trace  dump raw trace in ASCII
> 
> 
> For 'perf kmem' we could print something like:
> 
> $ perf kmem
> 
>  usage: perf kmem [<options>] {record|report|trace}
> 
>     -i, --input <file>    input file name
>     -v, --verbose         be more verbose (show symbol address, etc)
>     -D, --dump-raw-trace  dump raw trace in ASCII
> 
> The advantage is that right now, when a new user sees the subcommand in 
> 'perf' output:
> 
>  $ perf
>  ...
>    kmem           Tool to trace/measure kernel memory(slab) properties
>  ...
> 
> And types 'perf kmem', the following is displayed currently:
> 
>  $ perf kmem
> 
>  SUMMARY
>  =======
>  Total bytes requested: 0
>  Total bytes allocated: 0
>  Total bytes wasted on internal fragmentation: 0
>  Internal fragmentation: 0.000000%
>  Cross CPU allocations: 0/0
> 
> That's not very useful to someone who tries to figure out how to use 
> this command. A summary page would be more useful - and that would 
> advertise all the commands in a really short summary form (shorter than 
> -h/--help).
> 

perf-timechart acts similarly - it won't show help page by "perf timechart"

 # ./perf timechart
 0xbc480 [0x18]: skipping unknown header type: 2
 0xbc488 [(nil)]: skipping unknown header type: 238
 0xbc490 [(nil)]: skipping unknown header type: 20034
 Written 1.0 seconds of trace to output.svg.

But sure, I can change this for perf-kmem. So, do we want to do the same
for perf-timechart too?

> The other thing is that if someone types 'perf kmem record', the command 
> seems 'hung':
> 
>  $ perf kmem record
>  <hang>
> 
> Now if i Ctrl-C it i see that a recording session was going on:
> 
>  $ perf kmem record
>  ^C[ perf record: Woken up 10 times to write data ]
>  [ perf record: Captured and wrote 1.327 MB perf.data (~57984 samples) ]
> 
> but this was not apparent from the tool output and the user was left 
> wondering about what is going on.
> 
> I think at minimum we should print a:
> 
> 	[ Recording all kmem events in the system, Ctrl-C to stop. ]
> 
> line. (on a related note, 'perf sched record' needs such a fix too.)
> 

Yes, I followed perf-sched and perf-timechart. ;)

I'll fix it for these tools.

> Another solution would be for 'perf kmem record' to work analogous to 
> 'perf record': it could display a short help page by default, something 
> like:
> 
>  $ perf kmem record
> 
>   usage: perf kmem record [<options>] [<command>]
> 
>   example: perf kmem record -a sleep 10  # capture all events for 10 seconds
>            perf kmem record /bin/ls      # capture events of this command
>            perf kmem record -p 1234      # capture events of PID 1234
> 
> What do you think?
> 

But I'm not sure I like this, actually I prefer to just print
a line to explain what's going on.

> Also, a handful of mini-bugreports wrt. usability:
> 
> 1)
> 
> running 'perf kmem' without having a perf.data gives:
> 
> earth4:~/tip/tools/perf> ./perf kmem
> Failed to open file: perf.data  (try 'perf record' first)
> 
> SUMMARY
> =======
> Total bytes requested: 0
> Total bytes allocated: 0
> Total bytes wasted on internal fragmentation: 0
> Internal fragmentation: 0.000000%
> Cross CPU allocations: 0/0
> 

Again, this issue exists in perf-sched too..

So we need to fix not only perf-kmem.

> 2)
> 
> running 'perf kmem record' on a box without kmem events gives:
> 
> earth4:~/tip/tools/perf> ./perf kmem record
> invalid or unsupported event: 'kmem:kmalloc'
> Run 'perf list' for a list of valid events
> 
> i think we want to print something kmem specific - and tell the user how 
> to enable kmem events or so - 'perf list' is not a solution to him.
> 

ditto

> 3)
> 
> it doesnt seem to be working on one of my boxes, which has perf and kmem 
> events as well:
> 
> aldebaran:~/linux/linux/tools/perf> perf kmem record
> ^C[ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.050 MB perf.data (~2172 samples) ]
> 

Seems no kmem event is recorded. No sure what happened here.

Might be that the parameters that perf-kmem passes to perf-record
are not properly selected?

Do perf-sched and perf-timechart work on this box?

> aldebaran:~/linux/linux/tools/perf> perf kmem
> 
> SUMMARY
> =======
> Total bytes requested: 0
> Total bytes allocated: 0
> Total bytes wasted on internal fragmentation: 0
> Internal fragmentation: 0.000000%
> Cross CPU allocations: 0/0
> aldebaran:~/linux/linux/tools/perf> 
> 

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24  9:38     ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24  9:38 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

Ingo Molnar wrote:
> a few more UI suggestions for 'perf kmem':
> 

Thanks for the suggestions!

> I think it should look similar to how 'perf' and 'perf sched' prints 
> sub-commands with increasing specificity, which means that we display a 
> list of subcommands and options when typed:
> 

Yes, I'd like to make the usage and output format similar to perf-sched.

> $ perf sched
> 
>  usage: perf sched [<options>] {record|latency|map|replay|trace}
> 
>     -i, --input <file>    input file name
>     -v, --verbose         be more verbose (show symbol address, etc)
>     -D, --dump-raw-trace  dump raw trace in ASCII
> 
> 
> For 'perf kmem' we could print something like:
> 
> $ perf kmem
> 
>  usage: perf kmem [<options>] {record|report|trace}
> 
>     -i, --input <file>    input file name
>     -v, --verbose         be more verbose (show symbol address, etc)
>     -D, --dump-raw-trace  dump raw trace in ASCII
> 
> The advantage is that right now, when a new user sees the subcommand in 
> 'perf' output:
> 
>  $ perf
>  ...
>    kmem           Tool to trace/measure kernel memory(slab) properties
>  ...
> 
> And types 'perf kmem', the following is displayed currently:
> 
>  $ perf kmem
> 
>  SUMMARY
>  =======
>  Total bytes requested: 0
>  Total bytes allocated: 0
>  Total bytes wasted on internal fragmentation: 0
>  Internal fragmentation: 0.000000%
>  Cross CPU allocations: 0/0
> 
> That's not very useful to someone who tries to figure out how to use 
> this command. A summary page would be more useful - and that would 
> advertise all the commands in a really short summary form (shorter than 
> -h/--help).
> 

perf-timechart acts similarly - it won't show help page by "perf timechart"

 # ./perf timechart
 0xbc480 [0x18]: skipping unknown header type: 2
 0xbc488 [(nil)]: skipping unknown header type: 238
 0xbc490 [(nil)]: skipping unknown header type: 20034
 Written 1.0 seconds of trace to output.svg.

But sure, I can change this for perf-kmem. So, do we want to do the same
for perf-timechart too?

> The other thing is that if someone types 'perf kmem record', the command 
> seems 'hung':
> 
>  $ perf kmem record
>  <hang>
> 
> Now if i Ctrl-C it i see that a recording session was going on:
> 
>  $ perf kmem record
>  ^C[ perf record: Woken up 10 times to write data ]
>  [ perf record: Captured and wrote 1.327 MB perf.data (~57984 samples) ]
> 
> but this was not apparent from the tool output and the user was left 
> wondering about what is going on.
> 
> I think at minimum we should print a:
> 
> 	[ Recording all kmem events in the system, Ctrl-C to stop. ]
> 
> line. (on a related note, 'perf sched record' needs such a fix too.)
> 

Yes, I followed perf-sched and perf-timechart. ;)

I'll fix it for these tools.

> Another solution would be for 'perf kmem record' to work analogous to 
> 'perf record': it could display a short help page by default, something 
> like:
> 
>  $ perf kmem record
> 
>   usage: perf kmem record [<options>] [<command>]
> 
>   example: perf kmem record -a sleep 10  # capture all events for 10 seconds
>            perf kmem record /bin/ls      # capture events of this command
>            perf kmem record -p 1234      # capture events of PID 1234
> 
> What do you think?
> 

But I'm not sure I like this, actually I prefer to just print
a line to explain what's going on.

> Also, a handful of mini-bugreports wrt. usability:
> 
> 1)
> 
> running 'perf kmem' without having a perf.data gives:
> 
> earth4:~/tip/tools/perf> ./perf kmem
> Failed to open file: perf.data  (try 'perf record' first)
> 
> SUMMARY
> =======
> Total bytes requested: 0
> Total bytes allocated: 0
> Total bytes wasted on internal fragmentation: 0
> Internal fragmentation: 0.000000%
> Cross CPU allocations: 0/0
> 

Again, this issue exists in perf-sched too..

So we need to fix not only perf-kmem.

> 2)
> 
> running 'perf kmem record' on a box without kmem events gives:
> 
> earth4:~/tip/tools/perf> ./perf kmem record
> invalid or unsupported event: 'kmem:kmalloc'
> Run 'perf list' for a list of valid events
> 
> i think we want to print something kmem specific - and tell the user how 
> to enable kmem events or so - 'perf list' is not a solution to him.
> 

ditto

> 3)
> 
> it doesnt seem to be working on one of my boxes, which has perf and kmem 
> events as well:
> 
> aldebaran:~/linux/linux/tools/perf> perf kmem record
> ^C[ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.050 MB perf.data (~2172 samples) ]
> 

Seems no kmem event is recorded. No sure what happened here.

Might be that the parameters that perf-kmem passes to perf-record
are not properly selected?

Do perf-sched and perf-timechart work on this box?

> aldebaran:~/linux/linux/tools/perf> perf kmem
> 
> SUMMARY
> =======
> Total bytes requested: 0
> Total bytes allocated: 0
> Total bytes wasted on internal fragmentation: 0
> Internal fragmentation: 0.000000%
> Cross CPU allocations: 0/0
> aldebaran:~/linux/linux/tools/perf> 
> 

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^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24  9:38     ` Li Zefan
  (?)
@ 2009-11-24 10:07     ` Ingo Molnar
  2009-11-24 11:04         ` Li Zefan
                         ` (2 more replies)
  -1 siblings, 3 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24 10:07 UTC (permalink / raw)
  To: Li Zefan
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

[-- Attachment #1: Type: text/plain, Size: 1721 bytes --]


* Li Zefan <lizf@cn.fujitsu.com> wrote:

> > 3)
> > 
> > it doesnt seem to be working on one of my boxes, which has perf and kmem 
> > events as well:
> > 
> > aldebaran:~/linux/linux/tools/perf> perf kmem record
> > ^C[ perf record: Woken up 1 times to write data ]
> > [ perf record: Captured and wrote 0.050 MB perf.data (~2172 samples) ]
> > 
> 
> Seems no kmem event is recorded. No sure what happened here.
> 
> Might be that the parameters that perf-kmem passes to perf-record
> are not properly selected?
> 
> Do perf-sched and perf-timechart work on this box?

yeah:

aldebaran:~> perf sched record sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.017 MB perf.data (~758 samples) ]
aldebaran:~> perf trace | tail -5
         distccd-20944 [010]  1792.787376: sched_stat_runtime: comm=distccd pid=20944 runtime=11196 [ns] vruntime=696395420043 [ns]
            init-0     [009]  1792.914837: sched_stat_wait: comm=x86_64-linux-gc pid=881 delay=10686 [ns]
            init-0     [009]  1792.915082: sched_stat_sleep: comm=events/9 pid=44 delay=2183651362 [ns]
              as-889   [013]  1793.008008: sched_stat_runtime: comm=as pid=889 runtime=156807 [ns] vruntime=1553569219042 [ns]
            init-0     [004]  1793.154400: sched_stat_wait: comm=events/4 pid=39 delay=12155 [ns]

aldebaran:~> perf kmem record sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.078 MB perf.data (~3398 samples) ]
aldebaran:~> perf trace | tail -5
aldebaran:~> 

the perf.data has mmap and exit events - but no kmem events.

I've attached the config, in case it matters. It runs latest -tip, with 
your latest series applied as well.

	Ingo

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 67549 bytes --]

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.32-rc8
# Tue Nov 24 10:53:44 2009
#
CONFIG_64BIT=y
# CONFIG_X86_32 is not set
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_MMU=y
CONFIG_ZONE_DMA=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_DEFAULT_IDLE=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_HAVE_CPUMASK_OF_CPU_MAP=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ZONE_DMA32=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_X86_64_SMP=y
CONFIG_X86_HT=y
CONFIG_X86_TRAMPOLINE=y
# CONFIG_KTIME_SCALAR is not set
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y

#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_TREE=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
# CONFIG_TINY_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=64
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=18
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_RT_GROUP_SCHED is not set
# CONFIG_USER_SCHED is not set
CONFIG_CGROUP_SCHED=y
CONFIG_CGROUPS=y
# CONFIG_CGROUP_DEBUG is not set
CONFIG_CGROUP_NS=y
CONFIG_CGROUP_FREEZER=y
# CONFIG_CGROUP_DEVICE is not set
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
# CONFIG_CGROUP_MEM_RES_CTLR is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
CONFIG_RELAY=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
# CONFIG_EMBEDDED is not set
CONFIG_UID16=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_EXTRA_PASS=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
CONFIG_EVENT_PROFILE=y
CONFIG_PERF_COUNTERS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
# CONFIG_OPROFILE is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_KRETPROBES=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_HW_BREAKPOINT=y

#
# GCOV-based kernel profiling
#
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
CONFIG_INLINE_SPIN_UNLOCK=y
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
CONFIG_INLINE_READ_UNLOCK=y
# CONFIG_INLINE_READ_UNLOCK_BH is not set
CONFIG_INLINE_READ_UNLOCK_IRQ=y
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
CONFIG_INLINE_WRITE_UNLOCK=y
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
CONFIG_FREEZER=y

#
# Processor type and features
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_SMP=y
CONFIG_SPARSE_IRQ=y
CONFIG_NUMA_IRQ_DESC=y
CONFIG_X86_MPPARSE=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_VSMP is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
# CONFIG_PARAVIRT_GUEST is not set
# CONFIG_MEMTEST is not set
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=7
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR=y
# CONFIG_X86_DS is not set
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
CONFIG_GART_IOMMU=y
CONFIG_CALGARY_IOMMU=y
CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_STATS=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
CONFIG_IOMMU_API=y
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS=64
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_X86_MCE_THRESHOLD=y
# CONFIG_X86_MCE_INJECT is not set
CONFIG_X86_THERMAL_VECTOR=y
# CONFIG_I8K is not set
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
CONFIG_MICROCODE_AMD=y
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_X86_CPU_DEBUG=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_DIRECT_GBPAGES=y
CONFIG_NUMA=y
CONFIG_K8_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
# CONFIG_NUMA_EMU is not set
CONFIG_NODES_SHIFT=6
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
# CONFIG_DISCONTIGMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_HAVE_MLOCK=y
CONFIG_HAVE_MLOCKED_PAGE_BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_MEMORY_FAILURE is not set
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW_64K=y
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_EFI=y
CONFIG_SECCOMP=y
# CONFIG_CC_STACKPROTECTOR is not set
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
# CONFIG_KEXEC_JUMP is not set
CONFIG_PHYSICAL_START=0x1000000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
# CONFIG_COMPAT_VDSO is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y

#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_PM=y
CONFIG_PM_DEBUG=y
# CONFIG_PM_VERBOSE is not set
CONFIG_CAN_PM_TRACE=y
CONFIG_PM_TRACE=y
CONFIG_PM_TRACE_RTC=y
CONFIG_PM_SLEEP_SMP=y
CONFIG_PM_SLEEP=y
CONFIG_SUSPEND=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATION_NVS=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
# CONFIG_PM_RUNTIME is not set
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_PROCFS=y
CONFIG_ACPI_PROCFS_POWER=y
# CONFIG_ACPI_POWER_METER is not set
CONFIG_ACPI_SYSFS_POWER=y
CONFIG_ACPI_PROC_EVENT=y
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
CONFIG_ACPI_FAN=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_SBS is not set
# CONFIG_SFI is not set

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_DEBUG=y
# CONFIG_CPU_FREQ_STAT is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set

#
# CPUFreq processor drivers
#
CONFIG_X86_ACPI_CPUFREQ=y
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_P4_CLOCKMOD is not set

#
# shared options
#
# CONFIG_X86_SPEEDSTEP_LIB is not set
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y

#
# Memory power savings
#
# CONFIG_I7300_IDLE is not set

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_DOMAINS=y
CONFIG_DMAR=y
# CONFIG_DMAR_DEFAULT_ON is not set
CONFIG_DMAR_FLOPPY_WA=y
# CONFIG_INTR_REMAP is not set
CONFIG_PCIEPORTBUS=y
# CONFIG_HOTPLUG_PCI_PCIE is not set
CONFIG_PCIEAER=y
# CONFIG_PCIE_ECRC is not set
# CONFIG_PCIEAER_INJECT is not set
# CONFIG_PCIEASPM is not set
CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_LEGACY is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_STUB is not set
CONFIG_HT_IRQ=y
# CONFIG_PCI_IOV is not set
CONFIG_ISA_DMA_API=y
CONFIG_K8_NB=y
CONFIG_PCCARD=y
# CONFIG_PCMCIA_DEBUG is not set
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_PCMCIA_IOCTL=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_YENTA=y
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
# CONFIG_PD6729 is not set
# CONFIG_I82092 is not set
CONFIG_PCCARD_NONSTATIC=y
CONFIG_HOTPLUG_PCI=y
# CONFIG_HOTPLUG_PCI_FAKE is not set
# CONFIG_HOTPLUG_PCI_ACPI is not set
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set

#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=y
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_AOUT is not set
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_ASK_IP_FIB_HASH=y
# CONFIG_IP_FIB_TRIE is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
CONFIG_INET_LRO=y
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
CONFIG_TCP_CONG_CUBIC=y
# CONFIG_TCP_CONG_WESTWOOD is not set
# CONFIG_TCP_CONG_HTCP is not set
# CONFIG_TCP_CONG_HSTCP is not set
# CONFIG_TCP_CONG_HYBLA is not set
# CONFIG_TCP_CONG_VEGAS is not set
# CONFIG_TCP_CONG_SCALABLE is not set
# CONFIG_TCP_CONG_LP is not set
# CONFIG_TCP_CONG_VENO is not set
# CONFIG_TCP_CONG_YEAH is not set
# CONFIG_TCP_CONG_ILLINOIS is not set
# CONFIG_DEFAULT_BIC is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_HTCP is not set
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_IPV6_ROUTER_PREF is not set
# CONFIG_IPV6_OPTIMISTIC_DAD is not set
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
CONFIG_INET6_XFRM_MODE_TRANSPORT=y
CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=y
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=y
CONFIG_IPV6_NDISC_NODETYPE=y
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_MULTIPLE_TABLES is not set
# CONFIG_IPV6_MROUTE is not set
CONFIG_NETLABEL=y
CONFIG_NETWORK_SECMARK=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
# CONFIG_NETFILTER_ADVANCED is not set

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=y
CONFIG_NETFILTER_NETLINK_LOG=y
CONFIG_NF_CONNTRACK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_FTP=y
CONFIG_NF_CONNTRACK_IRC=y
CONFIG_NF_CONNTRACK_SIP=y
CONFIG_NF_CT_NETLINK=y
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
CONFIG_NETFILTER_XT_TARGET_MARK=y
CONFIG_NETFILTER_XT_TARGET_NFLOG=y
CONFIG_NETFILTER_XT_TARGET_SECMARK=y
CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
CONFIG_NETFILTER_XT_MATCH_MARK=y
CONFIG_NETFILTER_XT_MATCH_POLICY=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=y
CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_TARGET_LOG=y
CONFIG_IP_NF_TARGET_ULOG=y
CONFIG_NF_NAT=y
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_NF_NAT_FTP=y
CONFIG_NF_NAT_IRC=y
# CONFIG_NF_NAT_TFTP is not set
# CONFIG_NF_NAT_AMANDA is not set
# CONFIG_NF_NAT_PPTP is not set
# CONFIG_NF_NAT_H323 is not set
CONFIG_NF_NAT_SIP=y
CONFIG_IP_NF_MANGLE=y

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV6=y
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_MATCH_IPV6HEADER=y
CONFIG_IP6_NF_TARGET_LOG=y
CONFIG_IP6_NF_FILTER=y
CONFIG_IP6_NF_TARGET_REJECT=y
CONFIG_IP6_NF_MANGLE=y
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
CONFIG_LLC=y
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
# CONFIG_NET_SCH_CBQ is not set
# CONFIG_NET_SCH_HTB is not set
# CONFIG_NET_SCH_HFSC is not set
# CONFIG_NET_SCH_PRIO is not set
# CONFIG_NET_SCH_MULTIQ is not set
# CONFIG_NET_SCH_RED is not set
# CONFIG_NET_SCH_SFQ is not set
# CONFIG_NET_SCH_TEQL is not set
# CONFIG_NET_SCH_TBF is not set
# CONFIG_NET_SCH_GRED is not set
# CONFIG_NET_SCH_DSMARK is not set
# CONFIG_NET_SCH_NETEM is not set
# CONFIG_NET_SCH_DRR is not set
# CONFIG_NET_SCH_INGRESS is not set

#
# Classification
#
CONFIG_NET_CLS=y
# CONFIG_NET_CLS_BASIC is not set
# CONFIG_NET_CLS_TCINDEX is not set
# CONFIG_NET_CLS_ROUTE4 is not set
# CONFIG_NET_CLS_FW is not set
# CONFIG_NET_CLS_U32 is not set
# CONFIG_NET_CLS_RSVP is not set
# CONFIG_NET_CLS_RSVP6 is not set
# CONFIG_NET_CLS_FLOW is not set
# CONFIG_NET_CLS_CGROUP is not set
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
# CONFIG_NET_EMATCH_CMP is not set
# CONFIG_NET_EMATCH_NBYTE is not set
# CONFIG_NET_EMATCH_U32 is not set
# CONFIG_NET_EMATCH_META is not set
# CONFIG_NET_EMATCH_TEXT is not set
CONFIG_NET_CLS_ACT=y
# CONFIG_NET_ACT_POLICE is not set
# CONFIG_NET_ACT_GACT is not set
# CONFIG_NET_ACT_MIRRED is not set
# CONFIG_NET_ACT_IPT is not set
# CONFIG_NET_ACT_NAT is not set
# CONFIG_NET_ACT_PEDIT is not set
# CONFIG_NET_ACT_SIMP is not set
# CONFIG_NET_ACT_SKBEDIT is not set
CONFIG_NET_SCH_FIFO=y
# CONFIG_DCB is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NET_TCPPROBE is not set
# CONFIG_NET_DROP_MONITOR is not set
CONFIG_HAMRADIO=y

#
# Packet Radio protocols
#
# CONFIG_AX25 is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
CONFIG_RFKILL=y
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_DEVTMPFS is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_DEBUG_DRIVER is not set
CONFIG_DEBUG_DEVRES=y
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_FD is not set
CONFIG_BLK_CPQ_DA=y
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_ISL29003 is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_CB710_CORE is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
# CONFIG_SCSI_LOWLEVEL is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_ACPI=y
CONFIG_SATA_PMP=y
CONFIG_SATA_AHCI=y
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
# CONFIG_SATA_SVW is not set
CONFIG_ATA_PIIX=y
# CONFIG_SATA_MV is not set
CONFIG_SATA_NV=y
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SX4 is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_PATA_ACPI is not set
# CONFIG_PATA_ALI is not set
CONFIG_PATA_AMD=y
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_MPIIX is not set
CONFIG_PATA_OLDPIIX=y
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PCMCIA is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
CONFIG_PATA_SCH=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
# CONFIG_MD_RAID1 is not set
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
# CONFIG_DM_CRYPT is not set
# CONFIG_DM_SNAPSHOT is not set
CONFIG_DM_MIRROR=y
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_ZERO=y
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_UEVENT is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# You can enable one or both FireWire driver stacks.
#

#
# See the help texts for more information.
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
# CONFIG_IFB is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=y

#
# MII PHY device drivers
#
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
CONFIG_NET_VENDOR_3COM=y
CONFIG_VORTEX=y
# CONFIG_TYPHOON is not set
# CONFIG_ETHOC is not set
# CONFIG_DNET is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
# CONFIG_TULIP is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_ULI526X is not set
# CONFIG_PCMCIA_XIRCOM is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_B44 is not set
CONFIG_FORCEDETH=y
# CONFIG_FORCEDETH_NAPI is not set
CONFIG_E100=y
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
CONFIG_8139TOO=y
CONFIG_8139TOO_PIO=y
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
# CONFIG_R6040 is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SMSC9420 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_KS8842 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
# CONFIG_ATL2 is not set
CONFIG_NETDEV_1000=y
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
CONFIG_E1000=y
CONFIG_E1000E=y
# CONFIG_IP1000 is not set
CONFIG_IGB=y
CONFIG_IGBVF=y
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
# CONFIG_SKGE is not set
CONFIG_SKY2=y
# CONFIG_SKY2_DEBUG is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=y
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_JME is not set
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
CONFIG_CHELSIO_T3_DEPENDS=y
# CONFIG_CHELSIO_T3 is not set
# CONFIG_ENIC is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
# CONFIG_MYRI10GE is not set
# CONFIG_NIU is not set
# CONFIG_MLX4_EN is not set
# CONFIG_MLX4_CORE is not set
# CONFIG_TEHUTI is not set
# CONFIG_BNX2X is not set
# CONFIG_QLGE is not set
# CONFIG_SFC is not set
# CONFIG_BE2NET is not set
CONFIG_TR=y
# CONFIG_IBMOL is not set
# CONFIG_3C359 is not set
# CONFIG_TMS380TR is not set
CONFIG_WLAN=y
# CONFIG_WLAN_PRE80211 is not set
CONFIG_WLAN_80211=y
# CONFIG_PCMCIA_RAYCS is not set
# CONFIG_LIBERTAS is not set
# CONFIG_AIRO is not set
# CONFIG_ATMEL is not set
# CONFIG_AIRO_CS is not set
# CONFIG_PCMCIA_WL3501 is not set
# CONFIG_PRISM54 is not set
# CONFIG_USB_ZD1201 is not set
# CONFIG_HOSTAP is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_HSO is not set
CONFIG_NET_PCMCIA=y
# CONFIG_PCMCIA_3C589 is not set
# CONFIG_PCMCIA_3C574 is not set
# CONFIG_PCMCIA_FMVJ18X is not set
# CONFIG_PCMCIA_PCNET is not set
# CONFIG_PCMCIA_NMCLAN is not set
# CONFIG_PCMCIA_SMC91C92 is not set
# CONFIG_PCMCIA_XIRC2PS is not set
# CONFIG_PCMCIA_AXNET is not set
# CONFIG_PCMCIA_IBMTR is not set
# CONFIG_WAN is not set
CONFIG_FDDI=y
# CONFIG_DEFXX is not set
# CONFIG_SKFP is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
CONFIG_NETCONSOLE=y
# CONFIG_NETCONSOLE_DYNAMIC is not set
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_VMXNET3 is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
CONFIG_INPUT_JOYSTICK=y
# CONFIG_JOYSTICK_ANALOG is not set
# CONFIG_JOYSTICK_A3D is not set
# CONFIG_JOYSTICK_ADI is not set
# CONFIG_JOYSTICK_COBRA is not set
# CONFIG_JOYSTICK_GF2K is not set
# CONFIG_JOYSTICK_GRIP is not set
# CONFIG_JOYSTICK_GRIP_MP is not set
# CONFIG_JOYSTICK_GUILLEMOT is not set
# CONFIG_JOYSTICK_INTERACT is not set
# CONFIG_JOYSTICK_SIDEWINDER is not set
# CONFIG_JOYSTICK_TMDC is not set
# CONFIG_JOYSTICK_IFORCE is not set
# CONFIG_JOYSTICK_WARRIOR is not set
# CONFIG_JOYSTICK_MAGELLAN is not set
# CONFIG_JOYSTICK_SPACEORB is not set
# CONFIG_JOYSTICK_SPACEBALL is not set
# CONFIG_JOYSTICK_STINGER is not set
# CONFIG_JOYSTICK_TWIDJOY is not set
# CONFIG_JOYSTICK_ZHENHUA is not set
# CONFIG_JOYSTICK_JOYDUMP is not set
# CONFIG_JOYSTICK_XPAD is not set
CONFIG_INPUT_TABLET=y
# CONFIG_TABLET_USB_ACECAD is not set
# CONFIG_TABLET_USB_AIPTEK is not set
# CONFIG_TABLET_USB_GTCO is not set
# CONFIG_TABLET_USB_KBTAB is not set
# CONFIG_TABLET_USB_WACOM is not set
CONFIG_INPUT_TOUCHSCREEN=y
# CONFIG_TOUCHSCREEN_AD7879_I2C is not set
# CONFIG_TOUCHSCREEN_AD7879 is not set
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
# CONFIG_TOUCHSCREEN_ELO is not set
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
# CONFIG_TOUCHSCREEN_MK712 is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_TSC2007 is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_PCSPKR is not set
# CONFIG_INPUT_APANEL is not set
# CONFIG_INPUT_ATLAS_BTNS is not set
# CONFIG_INPUT_ATI_REMOTE is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_WINBOND_CIR is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_DEVKMEM=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_COMPUTONE is not set
# CONFIG_ROCKETPORT is not set
# CONFIG_CYCLADES is not set
# CONFIG_DIGIEPCA is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_ISI is not set
# CONFIG_SYNCLINK is not set
# CONFIG_SYNCLINKMP is not set
# CONFIG_SYNCLINK_GT is not set
# CONFIG_N_HDLC is not set
# CONFIG_RISCOM8 is not set
# CONFIG_SPECIALIX is not set
# CONFIG_STALDRV is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_CS is not set
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
# CONFIG_LEGACY_PTYS is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_HW_RANDOM_INTEL is not set
# CONFIG_HW_RANDOM_AMD is not set
CONFIG_HW_RANDOM_VIA=y
CONFIG_NVRAM=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# PCMCIA character devices
#
# CONFIG_SYNCLINK_CS is not set
# CONFIG_CARDMAN_4000 is not set
# CONFIG_CARDMAN_4040 is not set
# CONFIG_IPWIRELESS is not set
# CONFIG_MWAVE is not set
# CONFIG_PC8736x_GPIO is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
# CONFIG_HPET_MMAP is not set
# CONFIG_HANGCHECK_TIMER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_I801=y
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_SIMTEC is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Graphics adapter I2C/DDC channel drivers
#
# CONFIG_I2C_VOODOO3 is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_STUB is not set

#
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set
# CONFIG_SPI is not set

#
# PPS support
#
# CONFIG_PPS is not set
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_BATTERY_DS2760 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_BQ27x00 is not set
# CONFIG_BATTERY_MAX17040 is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7473 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_CORETEMP is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_SENSORS_APPLESMC is not set

#
# ACPI drivers
#
# CONFIG_SENSORS_ATK0110 is not set
# CONFIG_SENSORS_LIS3LV02D is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_HWMON is not set
CONFIG_WATCHDOG=y
# CONFIG_WATCHDOG_NOWAYOUT is not set

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_SC520_WDT is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
# CONFIG_I6300ESB_WDT is not set
# CONFIG_ITCO_WDT is not set
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
# CONFIG_HP_WATCHDOG is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_60XX_WDT is not set
# CONFIG_SBC8360_WDT is not set
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83697HF_WDT is not set
# CONFIG_W83697UG_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
# CONFIG_MACHZ_WDT is not set
# CONFIG_SBC_EPX_C3_WATCHDOG is not set

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_AB3100_CORE is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
CONFIG_VGA_ARB=y
CONFIG_DRM=y
CONFIG_DRM_KMS_HELPER=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_I810 is not set
# CONFIG_DRM_I830 is not set
CONFIG_DRM_I915=y
CONFIG_DRM_I915_KMS=y
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
# CONFIG_FB_SYS_FILLRECT is not set
# CONFIG_FB_SYS_COPYAREA is not set
# CONFIG_FB_SYS_IMAGEBLIT is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
# CONFIG_FB_SYS_FOPS is not set
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
# CONFIG_FB_BACKLIGHT is not set
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_UVESA is not set
# CONFIG_FB_VESA is not set
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_GEODE is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
# CONFIG_BACKLIGHT_PROGEAR is not set
# CONFIG_BACKLIGHT_MBP_NVIDIA is not set
# CONFIG_BACKLIGHT_SAHARA is not set

#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_HWDEP=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQ_DUMMY=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HRTIMER=y
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_DMA_SGBUF=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_DRIVERS=y
# CONFIG_SND_PCSP is not set
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_VIRMIDI is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CS5530 is not set
# CONFIG_SND_CS5535AUDIO is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
CONFIG_SND_HDA_INTEL=y
CONFIG_SND_HDA_HWDEP=y
# CONFIG_SND_HDA_RECONFIG is not set
# CONFIG_SND_HDA_INPUT_BEEP is not set
# CONFIG_SND_HDA_INPUT_JACK is not set
# CONFIG_SND_HDA_PATCH_LOADER is not set
CONFIG_SND_HDA_CODEC_REALTEK=y
CONFIG_SND_HDA_CODEC_ANALOG=y
CONFIG_SND_HDA_CODEC_SIGMATEL=y
CONFIG_SND_HDA_CODEC_VIA=y
CONFIG_SND_HDA_CODEC_ATIHDMI=y
CONFIG_SND_HDA_CODEC_NVHDMI=y
CONFIG_SND_HDA_CODEC_INTELHDMI=y
CONFIG_SND_HDA_ELD=y
CONFIG_SND_HDA_CODEC_CIRRUS=y
CONFIG_SND_HDA_CODEC_CONEXANT=y
CONFIG_SND_HDA_CODEC_CA0110=y
CONFIG_SND_HDA_CODEC_CMEDIA=y
CONFIG_SND_HDA_CODEC_SI3054=y
CONFIG_SND_HDA_GENERIC=y
# CONFIG_SND_HDA_POWER_SAVE is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_HIFIER is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_USX2Y is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_USB_US122L is not set
CONFIG_SND_PCMCIA=y
# CONFIG_SND_VXPOCKET is not set
# CONFIG_SND_PDAUDIOCF is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_HIDRAW=y

#
# USB Input Devices
#
CONFIG_USB_HID=y
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
CONFIG_HID_APPLE=y
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
# CONFIG_DRAGONRISE_FF is not set
CONFIG_HID_EZKEY=y
CONFIG_HID_KYE=y
CONFIG_HID_GYRATION=y
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LOGITECH=y
CONFIG_LOGITECH_FF=y
# CONFIG_LOGIRUMBLEPAD2_FF is not set
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_HID_NTRIG=y
CONFIG_HID_PANTHERLORD=y
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PETALYNX=y
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_GREENASIA=y
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_SMARTJOYPLUS=y
# CONFIG_SMARTJOYPLUS_FF is not set
CONFIG_HID_TOPSEED=y
CONFIG_HID_THRUSTMASTER=y
CONFIG_THRUSTMASTER_FF=y
CONFIG_HID_ZEROPLUS=y
CONFIG_ZEROPLUS_FF=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_SUSPEND=y
# CONFIG_USB_OTG is not set
CONFIG_USB_MON=y
# CONFIG_USB_WUSB is not set
# CONFIG_USB_WUSB_CBAF is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HWA_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
CONFIG_USB_PRINTER=y
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
CONFIG_USB_LIBUSUAL=y

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_VST is not set

#
# OTG and related infrastructure
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
# CONFIG_LEDS_ALIX2 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_CLEVO_MAIL is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_BD2802 is not set

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC=y

#
# Reporting subsystems
#
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_DECODE_MCE=y
# CONFIG_EDAC_MM_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_DMADEVICES=y

#
# DMA Devices
#
# CONFIG_INTEL_IOATDMA is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set

#
# TI VLYNQ
#
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACER_WMI is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_MSI_LAPTOP is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_COMPAL_LAPTOP is not set
# CONFIG_SONY_LAPTOP is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_INTEL_MENLOW is not set
CONFIG_EEEPC_LAPTOP=y
# CONFIG_ACPI_WMI is not set
# CONFIG_ACPI_ASUS is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_ACPI_TOSHIBA is not set

#
# Firmware Drivers
#
# CONFIG_EDD is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_EFI_VARS=y
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
CONFIG_DMIID=y
# CONFIG_ISCSI_IBFT_FIND is not set

#
# File systems
#
# CONFIG_EXT2_FS is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4_FS is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
# CONFIG_AUTOFS_FS is not set
CONFIG_AUTOFS4_FS=y
# CONFIG_FUSE_FS is not set
CONFIG_GENERIC_ACL=y

#
# Caches
#
# CONFIG_FSCACHE is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
# CONFIG_NFS_V4_1 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFSD is not set
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_RPCSEC_GSS_KRB5=y
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
# CONFIG_ATARI_PARTITION is not set
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
# CONFIG_LDM_PARTITION is not set
CONFIG_SGI_PARTITION=y
# CONFIG_ULTRIX_PARTITION is not set
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=y
# CONFIG_DLM is not set

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_PRINTK_TIME=y
CONFIG_ALLOW_WARNINGS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
# CONFIG_DETECT_SOFTLOCKUP is not set
# CONFIG_DETECT_HUNG_TASK is not set
CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
# CONFIG_KPROBES_SANITY_TEST is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_LKDTM is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FTRACE_NMI_ENTER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_RING_BUFFER=y
CONFIG_FTRACE_NMI_ENTER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SYSPROF_TRACER=y
CONFIG_SCHED_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
# CONFIG_BOOT_TRACER is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
CONFIG_POWER_TRACER=y
CONFIG_KSYM_TRACER=y
CONFIG_PROFILE_KSYM_TRACER=y
# CONFIG_STACK_TRACER is not set
CONFIG_KMEMTRACE=y
CONFIG_WORKQUEUE_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_KPROBE_EVENT=y
CONFIG_DYNAMIC_FTRACE=y
# CONFIG_FUNCTION_PROFILER is not set
CONFIG_FTRACE_MCOUNT_RECORD=y
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_MMIOTRACE is not set
# CONFIG_RING_BUFFER_BENCHMARK is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_HAVE_ARCH_KMEMCHECK=y
# CONFIG_STRICT_DEVMEM is not set
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
# CONFIG_X86_PTDUMP is not set
CONFIG_DEBUG_RODATA=y
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_DEBUG_NX_TEST=m
# CONFIG_IOMMU_DEBUG is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
CONFIG_OPTIMIZE_INLINING=y

#
# Security options
#
# CONFIG_KEYS is not set
CONFIG_SECURITY=y
# CONFIG_SECURITYFS is not set
CONFIG_SECURITY_NETWORK=y
# CONFIG_SECURITY_NETWORK_XFRM is not set
# CONFIG_SECURITY_PATH is not set
CONFIG_SECURITY_FILE_CAPABILITIES=y
# CONFIG_SECURITY_ROOTPLUG is not set
# CONFIG_INTEL_TXT is not set
CONFIG_LSM_MMAP_MIN_ADDR=65536
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=1
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
# CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_IMA is not set
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_PCOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_WORKQUEUE=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=y
# CONFIG_CRYPTO_TEST is not set

#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set

#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CRC32C_INTEL is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_X86_64 is not set
# CONFIG_CRYPTO_AES_NI_INTEL is not set
# CONFIG_CRYPTO_ANUBIS is not set
CONFIG_CRYPTO_ARC4=y
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SALSA20_X86_64 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_TWOFISH_X86_64 is not set

#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_PADLOCK is not set
# CONFIG_CRYPTO_DEV_HIFN_795X is not set
CONFIG_HAVE_KVM=y
CONFIG_VIRTUALIZATION=y
# CONFIG_KVM is not set
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_BALLOON is not set
CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_FIND_LAST_BIT=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
CONFIG_CRC_T10DIF=y
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24 10:07     ` Ingo Molnar
@ 2009-11-24 11:04         ` Li Zefan
  2009-11-24 18:49         ` Frederic Weisbecker
  2009-11-24 19:38       ` [PATCH] perf: Fix bad software/trace event recursion counting Frederic Weisbecker
  2 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24 11:04 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

>> Do perf-sched and perf-timechart work on this box?
> 
> yeah:
> 
> aldebaran:~> perf sched record sleep 1
> [ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.017 MB perf.data (~758 samples) ]
> aldebaran:~> perf trace | tail -5
>          distccd-20944 [010]  1792.787376: sched_stat_runtime: comm=distccd pid=20944 runtime=11196 [ns] vruntime=696395420043 [ns]
>             init-0     [009]  1792.914837: sched_stat_wait: comm=x86_64-linux-gc pid=881 delay=10686 [ns]
>             init-0     [009]  1792.915082: sched_stat_sleep: comm=events/9 pid=44 delay=2183651362 [ns]
>               as-889   [013]  1793.008008: sched_stat_runtime: comm=as pid=889 runtime=156807 [ns] vruntime=1553569219042 [ns]
>             init-0     [004]  1793.154400: sched_stat_wait: comm=events/4 pid=39 delay=12155 [ns]
> 
> aldebaran:~> perf kmem record sleep 1
> [ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.078 MB perf.data (~3398 samples) ]
> aldebaran:~> perf trace | tail -5
> aldebaran:~> 
> 
> the perf.data has mmap and exit events - but no kmem events.
> 

I was using yesterday's -tip tree, and I just updated to the latest -tip,
and I found perf tools are not working:

# ./perf kmem record sleep 3
...
# ./perf trace
            perf-1805  [001]    66.239160: kmem_cache_free: ...
            perf-1806  [000]    66.403561: kmem_cache_alloc: ...
         swapper-0     [000]    66.420099: kmem_cache_free: ...
# ./perf kmem record sleep 3
...
# ./perf trace
# ./perf sched record sleep 3
.../
# ./perf trace
            perf-1825  [000]   103.543014: sched_stat_runtime: ...
# ./perf sched record sleep 3
...
# ./perf trace
#

So I think some new updates on kernel perf_event break.



^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24 11:04         ` Li Zefan
  0 siblings, 0 replies; 53+ messages in thread
From: Li Zefan @ 2009-11-24 11:04 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm

>> Do perf-sched and perf-timechart work on this box?
> 
> yeah:
> 
> aldebaran:~> perf sched record sleep 1
> [ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.017 MB perf.data (~758 samples) ]
> aldebaran:~> perf trace | tail -5
>          distccd-20944 [010]  1792.787376: sched_stat_runtime: comm=distccd pid=20944 runtime=11196 [ns] vruntime=696395420043 [ns]
>             init-0     [009]  1792.914837: sched_stat_wait: comm=x86_64-linux-gc pid=881 delay=10686 [ns]
>             init-0     [009]  1792.915082: sched_stat_sleep: comm=events/9 pid=44 delay=2183651362 [ns]
>               as-889   [013]  1793.008008: sched_stat_runtime: comm=as pid=889 runtime=156807 [ns] vruntime=1553569219042 [ns]
>             init-0     [004]  1793.154400: sched_stat_wait: comm=events/4 pid=39 delay=12155 [ns]
> 
> aldebaran:~> perf kmem record sleep 1
> [ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.078 MB perf.data (~3398 samples) ]
> aldebaran:~> perf trace | tail -5
> aldebaran:~> 
> 
> the perf.data has mmap and exit events - but no kmem events.
> 

I was using yesterday's -tip tree, and I just updated to the latest -tip,
and I found perf tools are not working:

# ./perf kmem record sleep 3
...
# ./perf trace
            perf-1805  [001]    66.239160: kmem_cache_free: ...
            perf-1806  [000]    66.403561: kmem_cache_alloc: ...
         swapper-0     [000]    66.420099: kmem_cache_free: ...
# ./perf kmem record sleep 3
...
# ./perf trace
# ./perf sched record sleep 3
.../
# ./perf trace
            perf-1825  [000]   103.543014: sched_stat_runtime: ...
# ./perf sched record sleep 3
...
# ./perf trace
#

So I think some new updates on kernel perf_event break.


--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
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^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24 11:04         ` Li Zefan
@ 2009-11-24 20:35           ` Ingo Molnar
  -1 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24 20:35 UTC (permalink / raw)
  To: Li Zefan
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm


* Li Zefan <lizf@cn.fujitsu.com> wrote:

> So I think some new updates on kernel perf_event break.

yeah, you were right. This commit in latest -tip should fix it:

 fe61267: perf_events: Fix bad software/trace event recursion counting

	Ingo

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24 20:35           ` Ingo Molnar
  0 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24 20:35 UTC (permalink / raw)
  To: Li Zefan
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm


* Li Zefan <lizf@cn.fujitsu.com> wrote:

> So I think some new updates on kernel perf_event break.

yeah, you were right. This commit in latest -tip should fix it:

 fe61267: perf_events: Fix bad software/trace event recursion counting

	Ingo

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24 20:35           ` Ingo Molnar
@ 2009-11-24 22:34             ` Ingo Molnar
  -1 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24 22:34 UTC (permalink / raw)
  To: Li Zefan
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm


* Ingo Molnar <mingo@elte.hu> wrote:

> 
> * Li Zefan <lizf@cn.fujitsu.com> wrote:
> 
> > So I think some new updates on kernel perf_event break.
> 
> yeah, you were right. This commit in latest -tip should fix it:
> 
>  fe61267: perf_events: Fix bad software/trace event recursion counting

i tested perf kmem and it works fine now:

 aldebaran:~> perf kmem

 SUMMARY
 =======
 Total bytes requested: 153166032
 Total bytes allocated: 188544080
 Total bytes wasted on internal fragmentation: 35378048
 Internal fragmentation: 18.763807%
 Cross CPU allocations: 61680/451425

	Ingo

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24 22:34             ` Ingo Molnar
  0 siblings, 0 replies; 53+ messages in thread
From: Ingo Molnar @ 2009-11-24 22:34 UTC (permalink / raw)
  To: Li Zefan
  Cc: Pekka Enberg, Eduard - Gabriel Munteanu, Peter Zijlstra,
	Frederic Weisbecker, LKML, linux-mm


* Ingo Molnar <mingo@elte.hu> wrote:

> 
> * Li Zefan <lizf@cn.fujitsu.com> wrote:
> 
> > So I think some new updates on kernel perf_event break.
> 
> yeah, you were right. This commit in latest -tip should fix it:
> 
>  fe61267: perf_events: Fix bad software/trace event recursion counting

i tested perf kmem and it works fine now:

 aldebaran:~> perf kmem

 SUMMARY
 =======
 Total bytes requested: 153166032
 Total bytes allocated: 188544080
 Total bytes wasted on internal fragmentation: 35378048
 Internal fragmentation: 18.763807%
 Cross CPU allocations: 61680/451425

	Ingo

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
  2009-11-24 10:07     ` Ingo Molnar
@ 2009-11-24 18:49         ` Frederic Weisbecker
  2009-11-24 18:49         ` Frederic Weisbecker
  2009-11-24 19:38       ` [PATCH] perf: Fix bad software/trace event recursion counting Frederic Weisbecker
  2 siblings, 0 replies; 53+ messages in thread
From: Frederic Weisbecker @ 2009-11-24 18:49 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Li Zefan, Pekka Enberg, Eduard - Gabriel Munteanu,
	Peter Zijlstra, LKML, linux-mm

On Tue, Nov 24, 2009 at 11:07:24AM +0100, Ingo Molnar wrote:
> 
> * Li Zefan <lizf@cn.fujitsu.com> wrote:
> 
> > > 3)
> > > 
> > > it doesnt seem to be working on one of my boxes, which has perf and kmem 
> > > events as well:
> > > 
> > > aldebaran:~/linux/linux/tools/perf> perf kmem record
> > > ^C[ perf record: Woken up 1 times to write data ]
> > > [ perf record: Captured and wrote 0.050 MB perf.data (~2172 samples) ]
> > > 
> > 
> > Seems no kmem event is recorded. No sure what happened here.
> > 
> > Might be that the parameters that perf-kmem passes to perf-record
> > are not properly selected?
> > 
> > Do perf-sched and perf-timechart work on this box?
> 
> yeah:
> 
> aldebaran:~> perf sched record sleep 1
> [ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.017 MB perf.data (~758 samples) ]
> aldebaran:~> perf trace | tail -5
>          distccd-20944 [010]  1792.787376: sched_stat_runtime: comm=distccd pid=20944 runtime=11196 [ns] vruntime=696395420043 [ns]
>             init-0     [009]  1792.914837: sched_stat_wait: comm=x86_64-linux-gc pid=881 delay=10686 [ns]
>             init-0     [009]  1792.915082: sched_stat_sleep: comm=events/9 pid=44 delay=2183651362 [ns]
>               as-889   [013]  1793.008008: sched_stat_runtime: comm=as pid=889 runtime=156807 [ns] vruntime=1553569219042 [ns]
>             init-0     [004]  1793.154400: sched_stat_wait: comm=events/4 pid=39 delay=12155 [ns]
> 
> aldebaran:~> perf kmem record sleep 1
> [ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.078 MB perf.data (~3398 samples) ]
> aldebaran:~> perf trace | tail -5
> aldebaran:~> 
> 
> the perf.data has mmap and exit events - but no kmem events.
> 
> I've attached the config, in case it matters. It runs latest -tip, with 
> your latest series applied as well.
> 
> 	Ingo



I think this is a problem external to kmem events. It's about
trace events/perf in general. It looks like we have some losses.
Steve and Arjan have reported similar things.

I'll investigate this way.

Thanks.


^ permalink raw reply	[flat|nested] 53+ messages in thread

* Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
@ 2009-11-24 18:49         ` Frederic Weisbecker
  0 siblings, 0 replies; 53+ messages in thread
From: Frederic Weisbecker @ 2009-11-24 18:49 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: Li Zefan, Pekka Enberg, Eduard - Gabriel Munteanu,
	Peter Zijlstra, LKML, linux-mm

On Tue, Nov 24, 2009 at 11:07:24AM +0100, Ingo Molnar wrote:
> 
> * Li Zefan <lizf@cn.fujitsu.com> wrote:
> 
> > > 3)
> > > 
> > > it doesnt seem to be working on one of my boxes, which has perf and kmem 
> > > events as well:
> > > 
> > > aldebaran:~/linux/linux/tools/perf> perf kmem record
> > > ^C[ perf record: Woken up 1 times to write data ]
> > > [ perf record: Captured and wrote 0.050 MB perf.data (~2172 samples) ]
> > > 
> > 
> > Seems no kmem event is recorded. No sure what happened here.
> > 
> > Might be that the parameters that perf-kmem passes to perf-record
> > are not properly selected?
> > 
> > Do perf-sched and perf-timechart work on this box?
> 
> yeah:
> 
> aldebaran:~> perf sched record sleep 1
> [ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.017 MB perf.data (~758 samples) ]
> aldebaran:~> perf trace | tail -5
>          distccd-20944 [010]  1792.787376: sched_stat_runtime: comm=distccd pid=20944 runtime=11196 [ns] vruntime=696395420043 [ns]
>             init-0     [009]  1792.914837: sched_stat_wait: comm=x86_64-linux-gc pid=881 delay=10686 [ns]
>             init-0     [009]  1792.915082: sched_stat_sleep: comm=events/9 pid=44 delay=2183651362 [ns]
>               as-889   [013]  1793.008008: sched_stat_runtime: comm=as pid=889 runtime=156807 [ns] vruntime=1553569219042 [ns]
>             init-0     [004]  1793.154400: sched_stat_wait: comm=events/4 pid=39 delay=12155 [ns]
> 
> aldebaran:~> perf kmem record sleep 1
> [ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.078 MB perf.data (~3398 samples) ]
> aldebaran:~> perf trace | tail -5
> aldebaran:~> 
> 
> the perf.data has mmap and exit events - but no kmem events.
> 
> I've attached the config, in case it matters. It runs latest -tip, with 
> your latest series applied as well.
> 
> 	Ingo



I think this is a problem external to kmem events. It's about
trace events/perf in general. It looks like we have some losses.
Steve and Arjan have reported similar things.

I'll investigate this way.

Thanks.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

^ permalink raw reply	[flat|nested] 53+ messages in thread

* [PATCH] perf: Fix bad software/trace event recursion counting
  2009-11-24 10:07     ` Ingo Molnar
  2009-11-24 11:04         ` Li Zefan
  2009-11-24 18:49         ` Frederic Weisbecker
@ 2009-11-24 19:38       ` Frederic Weisbecker
  2009-11-24 20:36         ` [tip:perf/core] perf_events: " tip-bot for Frederic Weisbecker
  2009-11-24 20:48         ` [PATCH] perf: " Peter Zijlstra
  2 siblings, 2 replies; 53+ messages in thread
From: Frederic Weisbecker @ 2009-11-24 19:38 UTC (permalink / raw)
  To: Ingo Molnar
  Cc: LKML, Frederic Weisbecker, Peter Zijlstra,
	Arnaldo Carvalho de Melo, Paul Mackerras, Arjan van de Ven,
	Li Zefan, Steven Rostedt

Commit 4ed7c92d68a5387ba5f7030dc76eab03558e27f5
(perf_events: Undo some recursion damage) has introduced a bad
reference counting of the recursion context. putting the context
behaves like getting it, dropping every software/trace events
after the first one in a context.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/perf_event.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index accfd7b..35df94e 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -3914,7 +3914,7 @@ void perf_swevent_put_recursion_context(int rctx)
 {
 	struct perf_cpu_context *cpuctx = &__get_cpu_var(perf_cpu_context);
 	barrier();
-	cpuctx->recursion[rctx]++;
+	cpuctx->recursion[rctx]--;
 	put_cpu_var(perf_cpu_context);
 }
 EXPORT_SYMBOL_GPL(perf_swevent_put_recursion_context);
-- 
1.6.2.3


^ permalink raw reply related	[flat|nested] 53+ messages in thread

* [tip:perf/core] perf_events: Fix bad software/trace event recursion counting
  2009-11-24 19:38       ` [PATCH] perf: Fix bad software/trace event recursion counting Frederic Weisbecker
@ 2009-11-24 20:36         ` tip-bot for Frederic Weisbecker
  2009-11-24 20:48         ` [PATCH] perf: " Peter Zijlstra
  1 sibling, 0 replies; 53+ messages in thread
From: tip-bot for Frederic Weisbecker @ 2009-11-24 20:36 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: linux-kernel, paulus, acme, hpa, mingo, lizf, peterz, arjan,
	fweisbec, rostedt, tglx, mingo

Commit-ID:  fe6126722718e51fba4879517c11ac12d9775bcc
Gitweb:     http://git.kernel.org/tip/fe6126722718e51fba4879517c11ac12d9775bcc
Author:     Frederic Weisbecker <fweisbec@gmail.com>
AuthorDate: Tue, 24 Nov 2009 20:38:22 +0100
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 24 Nov 2009 21:34:00 +0100

perf_events: Fix bad software/trace event recursion counting

Commit 4ed7c92d68a5387ba5f7030dc76eab03558e27f5
(perf_events: Undo some recursion damage) has introduced a bad
reference counting of the recursion context. putting the context
behaves like getting it, dropping every software/trace events
after the first one in a context.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1259091502-5171-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 kernel/perf_event.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index accfd7b..35df94e 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -3914,7 +3914,7 @@ void perf_swevent_put_recursion_context(int rctx)
 {
 	struct perf_cpu_context *cpuctx = &__get_cpu_var(perf_cpu_context);
 	barrier();
-	cpuctx->recursion[rctx]++;
+	cpuctx->recursion[rctx]--;
 	put_cpu_var(perf_cpu_context);
 }
 EXPORT_SYMBOL_GPL(perf_swevent_put_recursion_context);

^ permalink raw reply related	[flat|nested] 53+ messages in thread

* Re: [PATCH] perf: Fix bad software/trace event recursion counting
  2009-11-24 19:38       ` [PATCH] perf: Fix bad software/trace event recursion counting Frederic Weisbecker
  2009-11-24 20:36         ` [tip:perf/core] perf_events: " tip-bot for Frederic Weisbecker
@ 2009-11-24 20:48         ` Peter Zijlstra
  1 sibling, 0 replies; 53+ messages in thread
From: Peter Zijlstra @ 2009-11-24 20:48 UTC (permalink / raw)
  To: Frederic Weisbecker
  Cc: Ingo Molnar, LKML, Arnaldo Carvalho de Melo, Paul Mackerras,
	Arjan van de Ven, Li Zefan, Steven Rostedt

On Tue, 2009-11-24 at 20:38 +0100, Frederic Weisbecker wrote:

> diff --git a/kernel/perf_event.c b/kernel/perf_event.c
> index accfd7b..35df94e 100644
> --- a/kernel/perf_event.c
> +++ b/kernel/perf_event.c
> @@ -3914,7 +3914,7 @@ void perf_swevent_put_recursion_context(int rctx)
>  {
>  	struct perf_cpu_context *cpuctx = &__get_cpu_var(perf_cpu_context);
>  	barrier();
> -	cpuctx->recursion[rctx]++;
> +	cpuctx->recursion[rctx]--;
>  	put_cpu_var(perf_cpu_context);
>  }

D'0h!


^ permalink raw reply	[flat|nested] 53+ messages in thread

end of thread, other threads:[~2009-11-24 22:35 UTC | newest]

Thread overview: 53+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-11-24  5:25 [PATCH 0/5] perf kmem: Add more functions and show more statistics Li Zefan
2009-11-24  5:25 ` Li Zefan
2009-11-24  5:25 ` [PATCH 1/5] perf kmem: Add new option to show raw ip Li Zefan
2009-11-24  5:25   ` Li Zefan
2009-11-24 16:54   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:54     ` tip-bot for Li Zefan
2009-11-24  5:26 ` [PATCH 2/5] perf kmem: Default to sort by fragmentation Li Zefan
2009-11-24  5:26   ` Li Zefan
2009-11-24 16:55   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:55     ` tip-bot for Li Zefan
2009-11-24  5:26 ` [PATCH 3/5] perf kmem: Collect cross node allocation statistics Li Zefan
2009-11-24  5:26   ` Li Zefan
2009-11-24 16:55   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:55     ` tip-bot for Li Zefan
2009-11-24  5:26 ` [PATCH 4/5] perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites Li Zefan
2009-11-24  5:26   ` Li Zefan
2009-11-24 16:55   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:55     ` tip-bot for Li Zefan
2009-11-24  5:27 ` [PATCH 5/5] perf kmem: Add help file Li Zefan
2009-11-24  5:27   ` Li Zefan
2009-11-24 16:55   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:55     ` tip-bot for Li Zefan
2009-11-24  7:15 ` [PATCH 0/5] perf kmem: Add more functions and show more statistics Pekka Enberg
2009-11-24  7:15   ` Pekka Enberg
2009-11-24  7:34   ` Ingo Molnar
2009-11-24  7:34     ` Ingo Molnar
2009-11-24  7:45     ` Pekka Enberg
2009-11-24  7:45       ` Pekka Enberg
2009-11-24  7:47       ` Ingo Molnar
2009-11-24  7:47         ` Ingo Molnar
2009-11-24  8:04     ` Li Zefan
2009-11-24  8:04       ` Li Zefan
2009-11-24  8:34       ` Ingo Molnar
2009-11-24  8:34         ` Ingo Molnar
2009-11-24 14:57         ` Arjan van de Ven
2009-11-24 14:57           ` Arjan van de Ven
2009-11-24  7:18 ` Pekka Enberg
2009-11-24  7:18   ` Pekka Enberg
2009-11-24  9:04 ` Ingo Molnar
2009-11-24  9:38   ` Li Zefan
2009-11-24  9:38     ` Li Zefan
2009-11-24 10:07     ` Ingo Molnar
2009-11-24 11:04       ` Li Zefan
2009-11-24 11:04         ` Li Zefan
2009-11-24 20:35         ` Ingo Molnar
2009-11-24 20:35           ` Ingo Molnar
2009-11-24 22:34           ` Ingo Molnar
2009-11-24 22:34             ` Ingo Molnar
2009-11-24 18:49       ` Frederic Weisbecker
2009-11-24 18:49         ` Frederic Weisbecker
2009-11-24 19:38       ` [PATCH] perf: Fix bad software/trace event recursion counting Frederic Weisbecker
2009-11-24 20:36         ` [tip:perf/core] perf_events: " tip-bot for Frederic Weisbecker
2009-11-24 20:48         ` [PATCH] perf: " Peter Zijlstra

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