From: tip-bot for Namhyung Kim <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: a.p.zijlstra@chello.nl, linux-kernel@vger.kernel.org,
fweisbec@gmail.com, acme@redhat.com, andi@firstfloor.org,
adrian.hunter@intel.com, dsahern@gmail.com, hpa@zytor.com,
jolsa@redhat.com, eranian@google.com, tglx@linutronix.de,
namhyung@kernel.org, mingo@kernel.org
Subject: [tip:perf/core] perf tools: Protect dso cache fd with a mutex
Date: Wed, 20 May 2015 05:25:38 -0700 [thread overview]
Message-ID: <tip-33bdedcea2d77231fe46b1204cf6fc3a7d7c96c9@git.kernel.org> (raw)
In-Reply-To: <1431909055-21442-28-git-send-email-namhyung@kernel.org>
Commit-ID: 33bdedcea2d77231fe46b1204cf6fc3a7d7c96c9
Gitweb: http://git.kernel.org/tip/33bdedcea2d77231fe46b1204cf6fc3a7d7c96c9
Author: Namhyung Kim <namhyung@kernel.org>
AuthorDate: Mon, 18 May 2015 09:30:42 +0900
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 18 May 2015 10:17:38 -0300
perf tools: Protect dso cache fd with a mutex
When dso cache is accessed in multi-thread environment, it's possible to
close other dso->data.fd during operation due to open file limit.
Protect the file descriptors using a separate mutex.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1431909055-21442-28-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/dso.c | 98 +++++++++++++++++++++++++++++++++++++--------------
1 file changed, 72 insertions(+), 26 deletions(-)
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 666e1db..1b96c8d 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -265,6 +265,7 @@ int __kmod_path__parse(struct kmod_path *m, const char *path,
*/
static LIST_HEAD(dso__data_open);
static long dso__data_open_cnt;
+static pthread_mutex_t dso__data_open_lock = PTHREAD_MUTEX_INITIALIZER;
static void dso__list_add(struct dso *dso)
{
@@ -434,7 +435,9 @@ static void check_data_close(void)
*/
void dso__data_close(struct dso *dso)
{
+ pthread_mutex_lock(&dso__data_open_lock);
close_dso(dso);
+ pthread_mutex_unlock(&dso__data_open_lock);
}
/**
@@ -457,6 +460,8 @@ int dso__data_fd(struct dso *dso, struct machine *machine)
if (dso->data.status == DSO_DATA_STATUS_ERROR)
return -1;
+ pthread_mutex_lock(&dso__data_open_lock);
+
if (dso->data.fd >= 0)
goto out;
@@ -479,6 +484,7 @@ out:
else
dso->data.status = DSO_DATA_STATUS_ERROR;
+ pthread_mutex_unlock(&dso__data_open_lock);
return dso->data.fd;
}
@@ -583,7 +589,8 @@ dso_cache__memcpy(struct dso_cache *cache, u64 offset,
}
static ssize_t
-dso_cache__read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
+dso_cache__read(struct dso *dso, struct machine *machine,
+ u64 offset, u8 *data, ssize_t size)
{
struct dso_cache *cache;
struct dso_cache *old;
@@ -592,11 +599,24 @@ dso_cache__read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
do {
u64 cache_offset;
- ret = -ENOMEM;
-
cache = zalloc(sizeof(*cache) + DSO__DATA_CACHE_SIZE);
if (!cache)
- break;
+ return -ENOMEM;
+
+ pthread_mutex_lock(&dso__data_open_lock);
+
+ /*
+ * dso->data.fd might be closed if other thread opened another
+ * file (dso) due to open file limit (RLIMIT_NOFILE).
+ */
+ if (dso->data.fd < 0) {
+ dso->data.fd = open_dso(dso, machine);
+ if (dso->data.fd < 0) {
+ ret = -errno;
+ dso->data.status = DSO_DATA_STATUS_ERROR;
+ break;
+ }
+ }
cache_offset = offset & DSO__DATA_CACHE_MASK;
@@ -606,6 +626,11 @@ dso_cache__read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
cache->offset = cache_offset;
cache->size = ret;
+ } while (0);
+
+ pthread_mutex_unlock(&dso__data_open_lock);
+
+ if (ret > 0) {
old = dso_cache__insert(dso, cache);
if (old) {
/* we lose the race */
@@ -614,8 +639,7 @@ dso_cache__read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
}
ret = dso_cache__memcpy(cache, offset, data, size);
-
- } while (0);
+ }
if (ret <= 0)
free(cache);
@@ -623,8 +647,8 @@ dso_cache__read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
return ret;
}
-static ssize_t dso_cache_read(struct dso *dso, u64 offset,
- u8 *data, ssize_t size)
+static ssize_t dso_cache_read(struct dso *dso, struct machine *machine,
+ u64 offset, u8 *data, ssize_t size)
{
struct dso_cache *cache;
@@ -632,7 +656,7 @@ static ssize_t dso_cache_read(struct dso *dso, u64 offset,
if (cache)
return dso_cache__memcpy(cache, offset, data, size);
else
- return dso_cache__read(dso, offset, data, size);
+ return dso_cache__read(dso, machine, offset, data, size);
}
/*
@@ -640,7 +664,8 @@ static ssize_t dso_cache_read(struct dso *dso, u64 offset,
* in the rb_tree. Any read to already cached data is served
* by cached data.
*/
-static ssize_t cached_read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
+static ssize_t cached_read(struct dso *dso, struct machine *machine,
+ u64 offset, u8 *data, ssize_t size)
{
ssize_t r = 0;
u8 *p = data;
@@ -648,7 +673,7 @@ static ssize_t cached_read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
do {
ssize_t ret;
- ret = dso_cache_read(dso, offset, p, size);
+ ret = dso_cache_read(dso, machine, offset, p, size);
if (ret < 0)
return ret;
@@ -668,21 +693,42 @@ static ssize_t cached_read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
return r;
}
-static int data_file_size(struct dso *dso)
+static int data_file_size(struct dso *dso, struct machine *machine)
{
+ int ret = 0;
struct stat st;
char sbuf[STRERR_BUFSIZE];
- if (!dso->data.file_size) {
- if (fstat(dso->data.fd, &st)) {
- pr_err("dso mmap failed, fstat: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
- return -1;
+ if (dso->data.file_size)
+ return 0;
+
+ pthread_mutex_lock(&dso__data_open_lock);
+
+ /*
+ * dso->data.fd might be closed if other thread opened another
+ * file (dso) due to open file limit (RLIMIT_NOFILE).
+ */
+ if (dso->data.fd < 0) {
+ dso->data.fd = open_dso(dso, machine);
+ if (dso->data.fd < 0) {
+ ret = -errno;
+ dso->data.status = DSO_DATA_STATUS_ERROR;
+ goto out;
}
- dso->data.file_size = st.st_size;
}
- return 0;
+ if (fstat(dso->data.fd, &st) < 0) {
+ ret = -errno;
+ pr_err("dso cache fstat failed: %s\n",
+ strerror_r(errno, sbuf, sizeof(sbuf)));
+ dso->data.status = DSO_DATA_STATUS_ERROR;
+ goto out;
+ }
+ dso->data.file_size = st.st_size;
+
+out:
+ pthread_mutex_unlock(&dso__data_open_lock);
+ return ret;
}
/**
@@ -700,17 +746,17 @@ off_t dso__data_size(struct dso *dso, struct machine *machine)
if (fd < 0)
return fd;
- if (data_file_size(dso))
+ if (data_file_size(dso, machine))
return -1;
/* For now just estimate dso data size is close to file size */
return dso->data.file_size;
}
-static ssize_t data_read_offset(struct dso *dso, u64 offset,
- u8 *data, ssize_t size)
+static ssize_t data_read_offset(struct dso *dso, struct machine *machine,
+ u64 offset, u8 *data, ssize_t size)
{
- if (data_file_size(dso))
+ if (data_file_size(dso, machine))
return -1;
/* Check the offset sanity. */
@@ -720,7 +766,7 @@ static ssize_t data_read_offset(struct dso *dso, u64 offset,
if (offset + size < offset)
return -1;
- return cached_read(dso, offset, data, size);
+ return cached_read(dso, machine, offset, data, size);
}
/**
@@ -737,10 +783,10 @@ static ssize_t data_read_offset(struct dso *dso, u64 offset,
ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
u64 offset, u8 *data, ssize_t size)
{
- if (dso__data_fd(dso, machine) < 0)
+ if (dso->data.status == DSO_DATA_STATUS_ERROR)
return -1;
- return data_read_offset(dso, offset, data, size);
+ return data_read_offset(dso, machine, offset, data, size);
}
/**
next prev parent reply other threads:[~2015-05-20 12:26 UTC|newest]
Thread overview: 221+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-18 0:30 [RFC/PATCHSET 00/40] perf tools: Speed-up perf report by using multi thread (v4) Namhyung Kim
2015-05-18 0:30 ` [PATCH 01/40] perf tools: Use a software dummy event to track task/mmap events Namhyung Kim
2015-05-18 0:30 ` [PATCH 02/40] perf tools: Add rm_rf() utility function Namhyung Kim
2015-05-18 0:30 ` [PATCH 03/40] perf tools: Introduce copyfile_offset() function Namhyung Kim
2015-05-18 12:57 ` Arnaldo Carvalho de Melo
2015-05-19 6:20 ` Namhyung Kim
2015-05-20 12:24 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-05-18 0:30 ` [PATCH 04/40] perf tools: Create separate mmap for dummy tracking event Namhyung Kim
2015-05-18 18:07 ` Jiri Olsa
2015-05-19 6:24 ` Namhyung Kim
2015-05-18 0:30 ` [PATCH 05/40] perf tools: Introduce perf_evlist__mmap_track() Namhyung Kim
2015-05-18 18:09 ` Jiri Olsa
2015-05-19 6:28 ` Namhyung Kim
2015-05-18 0:30 ` [PATCH 06/40] perf tools: Add HEADER_DATA_INDEX feature Namhyung Kim
2015-05-18 18:17 ` Jiri Olsa
2015-05-19 6:34 ` Namhyung Kim
2015-05-18 0:30 ` [PATCH 07/40] perf tools: Handle indexed data file properly Namhyung Kim
2015-05-18 18:37 ` Jiri Olsa
2015-05-19 6:40 ` Namhyung Kim
2015-05-18 0:30 ` [PATCH 08/40] perf record: Add --index option for building index table Namhyung Kim
2015-05-18 0:30 ` [PATCH 09/40] perf report: Skip dummy tracking event Namhyung Kim
2015-05-18 0:30 ` [PATCH 10/40] perf tools: Introduce thread__comm(_str)_by_time() helpers Namhyung Kim
2015-05-18 0:30 ` [PATCH 11/40] perf tools: Add a test case for thread comm handling Namhyung Kim
2015-05-18 19:29 ` Jiri Olsa
2015-05-19 6:42 ` Namhyung Kim
2015-05-18 0:30 ` [PATCH 12/40] perf tools: Use thread__comm_by_time() when adding hist entries Namhyung Kim
2015-05-18 0:30 ` [PATCH 13/40] perf tools: Convert dead thread list into rbtree Namhyung Kim
2015-05-18 19:34 ` Jiri Olsa
2015-05-19 6:45 ` Namhyung Kim
2015-05-18 0:30 ` [PATCH 14/40] perf tools: Introduce machine__find*_thread_by_time() Namhyung Kim
2015-05-18 19:50 ` Jiri Olsa
2015-05-18 19:56 ` Jiri Olsa
2015-05-19 6:57 ` Namhyung Kim
2015-05-18 0:30 ` [PATCH 15/40] perf tools: Add a test case for timed thread handling Namhyung Kim
2015-05-18 0:30 ` [PATCH 16/40] perf tools: Reducing arguments of hist_entry_iter__add() Namhyung Kim
2015-05-18 12:55 ` Arnaldo Carvalho de Melo
2015-05-19 7:01 ` Namhyung Kim
2015-05-19 8:04 ` [PATCH] " Namhyung Kim
2015-05-19 14:03 ` Arnaldo Carvalho de Melo
2015-05-27 16:47 ` [tip:perf/core] perf hists: " tip-bot for Namhyung Kim
2015-05-18 0:30 ` [PATCH 17/40] perf tools: Maintain map groups list in a leader thread Namhyung Kim
2015-05-18 0:30 ` [PATCH 18/40] perf tools: Introduce thread__find_addr_location_by_time() and friends Namhyung Kim
2015-05-18 0:30 ` [PATCH 19/40] perf callchain: Use " Namhyung Kim
2015-05-18 0:30 ` [PATCH 20/40] perf tools: Add a test case for timed map groups handling Namhyung Kim
2015-05-18 0:30 ` [PATCH 21/40] perf tools: Save timestamp of a map creation Namhyung Kim
2015-05-18 0:30 ` [PATCH 22/40] perf tools: Introduce map_groups__{insert,find}_by_time() Namhyung Kim
2015-05-18 0:30 ` [PATCH 23/40] perf tools: Use map_groups__find_addr_by_time() Namhyung Kim
2015-05-18 0:30 ` [PATCH 24/40] perf tools: Add testcase for managing maps with time Namhyung Kim
2015-05-18 0:30 ` [PATCH 25/40] perf tools: Protect dso symbol loading using a mutex Namhyung Kim
2015-05-20 12:25 ` [tip:perf/core] perf symbols: " tip-bot for Namhyung Kim
2015-05-18 0:30 ` [PATCH 26/40] perf tools: Protect dso cache tree using dso->lock Namhyung Kim
2015-05-20 12:25 ` [tip:perf/core] perf symbols: Protect dso cache tree using dso-> lock tip-bot for Namhyung Kim
2015-05-18 0:30 ` [PATCH 27/40] perf tools: Protect dso cache fd with a mutex Namhyung Kim
2015-05-20 12:25 ` tip-bot for Namhyung Kim [this message]
2015-05-18 0:30 ` [PATCH 28/40] perf callchain: Maintain libunwind's address space in map_groups Namhyung Kim
2015-05-18 0:30 ` [PATCH 29/40] perf tools: Add dso__data_get/put_fd() Namhyung Kim
2015-05-18 0:30 ` [PATCH 30/40] perf session: Pass struct events stats to event processing functions Namhyung Kim
2015-05-18 0:30 ` [PATCH 31/40] perf hists: Pass hists struct to hist_entry_iter struct Namhyung Kim
2015-05-18 0:30 ` [PATCH 32/40] perf tools: Move BUILD_ID_SIZE definition to perf.h Namhyung Kim
2015-05-18 0:30 ` [PATCH 33/40] perf session: Separate struct machines from session Namhyung Kim
2015-05-18 12:52 ` Arnaldo Carvalho de Melo
2015-05-19 7:28 ` Namhyung Kim
2015-05-19 22:46 ` Arnaldo Carvalho de Melo
2015-05-19 23:58 ` Namhyung Kim
2015-05-28 2:39 ` [RFC 0/2] " Namhyung Kim
2015-05-28 2:39 ` [PATCH 1/2] perf tools: Introduce machines__new/delete() Namhyung Kim
2015-05-28 2:39 ` [PATCH 2/2] perf session: Separate struct machines from session Namhyung Kim
2015-05-18 0:30 ` [PATCH 34/40] perf report: Parallelize perf report using multi-thread Namhyung Kim
2015-05-19 10:12 ` Jiri Olsa
2015-05-19 14:58 ` Namhyung Kim
2015-05-18 0:30 ` [PATCH 35/40] perf record: Synthesize COMM event for a command line workload Namhyung Kim
2015-05-18 12:45 ` Arnaldo Carvalho de Melo
2015-05-19 7:46 ` Namhyung Kim
2015-05-19 14:02 ` Arnaldo Carvalho de Melo
2015-05-19 15:12 ` Namhyung Kim
2015-05-19 16:30 ` Arnaldo Carvalho de Melo
2015-05-19 19:49 ` Jiri Olsa
2015-05-19 20:18 ` Arnaldo Carvalho de Melo
2015-05-19 23:56 ` Namhyung Kim
2015-05-20 0:22 ` Arnaldo Carvalho de Melo
2015-05-20 0:56 ` Namhyung Kim
2015-05-20 1:16 ` Arnaldo Carvalho de Melo
2015-05-18 0:30 ` [PATCH 36/40] perf tools: Fix progress ui to support multi thread Namhyung Kim
2015-05-18 0:30 ` [PATCH 37/40] perf report: Add --multi-thread option and config item Namhyung Kim
2015-05-18 0:30 ` [PATCH 38/40] perf session: Handle index files generally Namhyung Kim
2015-05-19 22:27 ` David Ahern
2015-05-20 0:05 ` Namhyung Kim
2015-05-20 7:20 ` [PATCH 41/40] perf report: Add --num-thread option to control number of thread Namhyung Kim
2015-05-18 0:30 ` [PATCH 39/40] perf data: Implement 'index' subcommand Namhyung Kim
2015-05-18 0:30 ` [PATCH Not-for-merge 40/40] perf tools: Disable thread refcount due to bug Namhyung Kim
2015-05-18 1:23 ` Arnaldo Carvalho de Melo
2015-05-18 12:21 ` Namhyung Kim
2015-05-18 12:30 ` Arnaldo Carvalho de Melo
-- strict thread matches above, loose matches on Subject: below --
2015-03-03 3:07 [RFC/PATCHSET 00/38] perf tools: Speed-up perf report by using multi thread (v3) Namhyung Kim
2015-03-03 3:07 ` [PATCH 01/38] perf tools: Use a software dummy event to track task/mmap events Namhyung Kim
2015-03-03 3:07 ` [PATCH 02/38] perf tools: Add rm_rf() utility function Namhyung Kim
2015-03-03 3:07 ` [PATCH 03/38] perf tools: Introduce copyfile_offset() function Namhyung Kim
2015-03-04 14:58 ` Jiri Olsa
2015-03-03 3:07 ` [PATCH 04/38] perf tools: Create separate mmap for dummy tracking event Namhyung Kim
2015-03-03 3:07 ` [PATCH 05/38] perf tools: Introduce perf_evlist__mmap_track() Namhyung Kim
2015-03-03 3:07 ` [PATCH 06/38] perf tools: Add HEADER_DATA_INDEX feature Namhyung Kim
2015-03-03 3:07 ` [PATCH 07/38] perf tools: Handle indexed data file properly Namhyung Kim
2015-03-04 16:19 ` Jiri Olsa
2015-03-06 4:17 ` Namhyung Kim
2015-03-03 3:07 ` [PATCH 08/38] perf record: Add --index option for building index table Namhyung Kim
2015-03-05 7:56 ` Jiri Olsa
2015-03-06 4:19 ` Namhyung Kim
2015-03-03 3:07 ` [PATCH 09/38] perf report: Skip dummy tracking event Namhyung Kim
2015-03-03 3:07 ` [PATCH 10/38] perf tools: Pass session arg to perf_event__preprocess_sample() Namhyung Kim
2015-03-03 13:59 ` Arnaldo Carvalho de Melo
2015-03-03 14:18 ` Namhyung Kim
2015-03-03 3:07 ` [PATCH 11/38] perf script: Pass session arg to ->process_event callback Namhyung Kim
2015-03-03 3:07 ` [PATCH 12/38] perf tools: Introduce thread__comm_time() helpers Namhyung Kim
2015-03-03 16:28 ` Frederic Weisbecker
2015-03-04 0:02 ` Namhyung Kim
2015-03-05 16:08 ` Frederic Weisbecker
2015-03-06 4:38 ` Namhyung Kim
2015-03-06 12:48 ` Arnaldo Carvalho de Melo
2015-03-10 6:55 ` Namhyung Kim
2015-03-03 3:07 ` [PATCH 13/38] perf tools: Add a test case for thread comm handling Namhyung Kim
2015-03-03 3:07 ` [PATCH 14/38] perf tools: Use thread__comm_time() when adding hist entries Namhyung Kim
2015-03-03 3:07 ` [PATCH 15/38] perf tools: Convert dead thread list into rbtree Namhyung Kim
2015-03-03 3:07 ` [PATCH 16/38] perf tools: Introduce machine__find*_thread_time() Namhyung Kim
2015-03-03 3:07 ` [PATCH 17/38] perf tools: Add a test case for timed thread handling Namhyung Kim
2015-03-03 3:07 ` [PATCH 18/38] perf tools: Reducing arguments of hist_entry_iter__add() Namhyung Kim
2015-03-03 3:07 ` [PATCH 19/38] perf tools: Pass session to hist_entry_iter struct Namhyung Kim
2015-03-03 3:07 ` [PATCH 20/38] perf tools: Maintain map groups list in a leader thread Namhyung Kim
2015-03-03 3:07 ` [PATCH 21/38] perf tools: Introduce session__find_addr_location() and friends Namhyung Kim
2015-03-03 3:07 ` [PATCH 22/38] perf callchain: Use " Namhyung Kim
2015-03-03 14:01 ` Arnaldo Carvalho de Melo
2015-03-03 3:07 ` [PATCH 23/38] perf tools: Add a test case for timed map groups handling Namhyung Kim
2015-03-03 3:07 ` [PATCH 24/38] perf tools: Protect dso symbol loading using a mutex Namhyung Kim
2015-03-03 3:07 ` [PATCH 25/38] perf tools: Protect dso cache tree using dso->lock Namhyung Kim
2015-03-03 3:07 ` [PATCH 26/38] perf tools: Protect dso cache fd with a mutex Namhyung Kim
2015-03-03 3:07 ` [PATCH 27/38] perf callchain: Maintain libunwind's address space in map_groups Namhyung Kim
2015-03-03 3:07 ` [PATCH 28/38] perf tools: Add dso__data_get/put_fd() Namhyung Kim
2015-03-03 3:07 ` [PATCH 29/38] perf session: Pass struct events stats to event processing functions Namhyung Kim
2015-03-03 3:07 ` [PATCH 30/38] perf hists: Pass hists struct to hist_entry_iter struct Namhyung Kim
2015-03-03 3:07 ` [PATCH 31/38] perf tools: Move BUILD_ID_SIZE definition to perf.h Namhyung Kim
2015-03-03 3:07 ` [PATCH 32/38] perf report: Parallelize perf report using multi-thread Namhyung Kim
2015-03-03 3:07 ` [PATCH 33/38] perf tools: Add missing_threads rb tree Namhyung Kim
2015-03-03 3:07 ` [PATCH 34/38] perf record: Synthesize COMM event for a command line workload Namhyung Kim
2015-03-03 3:07 ` [PATCH 35/38] perf tools: Fix progress ui to support multi thread Namhyung Kim
2015-03-03 3:07 ` [PATCH 36/38] perf report: Add --multi-thread option and config item Namhyung Kim
2015-03-03 3:07 ` [PATCH 37/38] perf session: Handle index files generally Namhyung Kim
2015-03-03 3:07 ` [PATCH 38/38] perf data: Implement 'index' subcommand Namhyung Kim
2015-01-29 8:06 [RFC/PATCHSET 00/42] perf tools: Speed-up perf report by using multi thread (v2) Namhyung Kim
2015-01-29 8:06 ` [PATCH 01/42] perf tools: Support to read compressed module from build-id cache Namhyung Kim
2015-01-30 14:32 ` Jiri Olsa
2015-02-02 15:03 ` Namhyung Kim
2015-01-30 18:33 ` [tip:perf/core] perf symbols: " tip-bot for Namhyung Kim
2015-01-29 8:06 ` [PATCH 02/42] perf tools: Do not use __perf_session__process_events() directly Namhyung Kim
2015-01-30 18:32 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29 8:06 ` [PATCH 03/42] perf record: Show precise number of samples Namhyung Kim
2015-01-30 18:32 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29 8:06 ` [PATCH 04/42] perf header: Set header version correctly Namhyung Kim
2015-01-30 18:33 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29 8:06 ` [PATCH 05/42] perf tools: Set attr.task bit for a tracking event Namhyung Kim
2015-01-30 18:33 ` [tip:perf/core] perf evsel: " tip-bot for Namhyung Kim
2015-01-29 8:06 ` [PATCH 06/42] perf tools: Use a software dummy event to track task/mmap events Namhyung Kim
2015-01-29 8:06 ` [PATCH 07/42] perf tools: Use perf_data_file__fd() consistently Namhyung Kim
2015-01-30 18:33 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29 8:06 ` [PATCH 08/42] perf tools: Add rm_rf() utility function Namhyung Kim
2015-01-30 15:02 ` Jiri Olsa
2015-05-20 12:24 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-01-29 8:06 ` [PATCH 09/42] perf tools: Introduce copyfile_offset() function Namhyung Kim
2015-01-29 8:06 ` [PATCH 10/42] perf tools: Create separate mmap for dummy tracking event Namhyung Kim
2015-01-29 8:06 ` [PATCH 11/42] perf tools: Introduce perf_evlist__mmap_track() Namhyung Kim
2015-01-29 8:06 ` [PATCH 12/42] perf tools: Add HEADER_DATA_INDEX feature Namhyung Kim
2015-01-29 8:06 ` [PATCH 13/42] perf tools: Handle indexed data file properly Namhyung Kim
2015-01-29 8:06 ` [PATCH 14/42] perf record: Add --index option for building index table Namhyung Kim
2015-02-01 18:06 ` Jiri Olsa
2015-02-02 8:34 ` Adrian Hunter
2015-02-02 9:15 ` Jiri Olsa
2015-02-02 9:52 ` Adrian Hunter
2015-02-02 10:05 ` Jiri Olsa
2015-02-02 12:07 ` Adrian Hunter
2015-02-02 12:13 ` Jiri Olsa
2015-02-02 14:56 ` Namhyung Kim
2015-02-02 17:30 ` Jiri Olsa
2015-02-03 8:42 ` Adrian Hunter
2015-01-29 8:06 ` [PATCH 15/42] perf report: Skip dummy tracking event Namhyung Kim
2015-01-29 8:06 ` [PATCH 16/42] perf tools: Pass session arg to perf_event__preprocess_sample() Namhyung Kim
2015-01-29 8:06 ` [PATCH 17/42] perf script: Pass session arg to ->process_event callback Namhyung Kim
2015-01-29 8:06 ` [PATCH 18/42] perf tools: Introduce thread__comm_time() helpers Namhyung Kim
2015-01-29 8:07 ` [PATCH 19/42] perf tools: Add a test case for thread comm handling Namhyung Kim
2015-01-29 8:07 ` [PATCH 20/42] perf tools: Use thread__comm_time() when adding hist entries Namhyung Kim
2015-01-29 8:07 ` [PATCH 21/42] perf tools: Convert dead thread list into rbtree Namhyung Kim
2015-01-29 8:07 ` [PATCH 22/42] perf tools: Introduce machine__find*_thread_time() Namhyung Kim
2015-01-29 8:07 ` [PATCH 23/42] perf tools: Add a test case for timed thread handling Namhyung Kim
2015-01-29 8:07 ` [PATCH 24/42] perf tools: Maintain map groups list in a leader thread Namhyung Kim
2015-01-29 8:07 ` [PATCH 25/42] perf tools: Introduce thread__find_addr_location_time() and friends Namhyung Kim
2015-01-29 8:07 ` [PATCH 26/42] perf tools: Add a test case for timed map groups handling Namhyung Kim
2015-01-29 8:07 ` [PATCH 27/42] perf tools: Protect dso symbol loading using a mutex Namhyung Kim
2015-01-29 12:34 ` Arnaldo Carvalho de Melo
2015-01-29 12:48 ` Namhyung Kim
2015-01-29 8:07 ` [PATCH 28/42] perf tools: Protect dso cache tree using dso->lock Namhyung Kim
2015-01-29 8:07 ` [PATCH 29/42] perf tools: Protect dso cache fd with a mutex Namhyung Kim
2015-01-29 12:31 ` Arnaldo Carvalho de Melo
2015-01-29 13:19 ` Namhyung Kim
2015-01-29 16:23 ` Arnaldo Carvalho de Melo
2015-01-30 0:51 ` Namhyung Kim
2015-01-29 8:07 ` [PATCH 30/42] perf session: Pass struct events stats to event processing functions Namhyung Kim
2015-01-29 8:07 ` [PATCH 31/42] perf hists: Pass hists struct to hist_entry_iter functions Namhyung Kim
2015-01-29 8:07 ` [PATCH 32/42] perf tools: Move BUILD_ID_SIZE definition to perf.h Namhyung Kim
2015-01-29 8:07 ` [PATCH 33/42] perf report: Parallelize perf report using multi-thread Namhyung Kim
2015-01-29 8:07 ` [PATCH 34/42] perf tools: Add missing_threads rb tree Namhyung Kim
2015-01-29 8:07 ` [PATCH 35/42] perf record: Synthesize COMM event for a command line workload Namhyung Kim
2015-01-29 8:07 ` [PATCH 36/42] perf tools: Fix progress ui to support multi thread Namhyung Kim
2015-01-29 8:07 ` [PATCH 37/42] perf report: Add --multi-thread option and config item Namhyung Kim
2015-01-29 8:07 ` [PATCH 38/42] perf session: Handle index files generally Namhyung Kim
2015-01-29 8:07 ` [PATCH 39/42] perf tools: Convert lseek + read to pread Namhyung Kim
2015-01-30 18:34 ` [tip:perf/core] perf symbols: " tip-bot for Namhyung Kim
2015-01-29 8:07 ` [PATCH 40/42] perf callchain: Save eh/debug frame offset for dwarf unwind Namhyung Kim
2015-01-29 12:38 ` Arnaldo Carvalho de Melo
2015-01-29 13:23 ` Namhyung Kim
2015-01-29 19:22 ` Arnaldo Carvalho de Melo
2015-01-30 18:32 ` [tip:perf/core] perf callchain: Cache eh/ debug " tip-bot for Namhyung Kim
2015-01-29 8:07 ` [PATCH 41/42] perf tools: Add new perf data command Namhyung Kim
2015-01-29 8:07 ` [PATCH 42/42] perf data: Implement 'index' subcommand Namhyung Kim
2015-01-29 19:56 ` [RFC/PATCHSET 00/42] perf tools: Speed-up perf report by using multi thread (v2) Arnaldo Carvalho de Melo
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