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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 16/20] perf pmu: Support MetricExpr header in JSON event list
Date: Fri, 24 Mar 2017 11:57:27 -0300	[thread overview]
Message-ID: <20170324145731.29350-17-acme@kernel.org> (raw)
In-Reply-To: <20170324145731.29350-1-acme@kernel.org>

From: Andi Kleen <ak@linux.intel.com>

Add support for parsing the MetricExpr header in the JSON event lists
and storing them in the alias structure.

Used in the next patch.

v2: Change DividedBy to MetricExpr
v3: Really catch all uses of DividedBy

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-10-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/pmu-events/jevents.c    | 18 ++++++++++++++----
 tools/perf/pmu-events/jevents.h    |  2 +-
 tools/perf/pmu-events/pmu-events.h |  1 +
 tools/perf/util/pmu.c              |  9 ++++++---
 tools/perf/util/pmu.h              |  1 +
 5 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index eed09346a72a..0735dc2a167a 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -291,7 +291,8 @@ static void print_events_table_prefix(FILE *fp, const char *tblname)
 
 static int print_events_table_entry(void *data, char *name, char *event,
 				    char *desc, char *long_desc,
-				    char *pmu, char *unit, char *perpkg)
+				    char *pmu, char *unit, char *perpkg,
+				    char *metric_expr)
 {
 	struct perf_entry_data *pd = data;
 	FILE *outfp = pd->outfp;
@@ -315,6 +316,8 @@ static int print_events_table_entry(void *data, char *name, char *event,
 		fprintf(outfp, "\t.unit = \"%s\",\n", unit);
 	if (perpkg)
 		fprintf(outfp, "\t.perpkg = \"%s\",\n", perpkg);
+	if (metric_expr)
+		fprintf(outfp, "\t.metric_expr = \"%s\",\n", metric_expr);
 	fprintf(outfp, "},\n");
 
 	return 0;
@@ -362,7 +365,8 @@ static char *real_event(const char *name, char *event)
 int json_events(const char *fn,
 	  int (*func)(void *data, char *name, char *event, char *desc,
 		      char *long_desc,
-		      char *pmu, char *unit, char *perpkg),
+		      char *pmu, char *unit, char *perpkg,
+		      char *metric_expr),
 	  void *data)
 {
 	int err = -EIO;
@@ -388,6 +392,7 @@ int json_events(const char *fn,
 		char *filter = NULL;
 		char *perpkg = NULL;
 		char *unit = NULL;
+		char *metric_expr = NULL;
 		unsigned long long eventcode = 0;
 		struct msrmap *msr = NULL;
 		jsmntok_t *msrval = NULL;
@@ -398,6 +403,7 @@ int json_events(const char *fn,
 		for (j = 0; j < obj->size; j += 2) {
 			jsmntok_t *field, *val;
 			int nz;
+			char *s;
 
 			field = tok + j;
 			EXPECT(field->type == JSMN_STRING, tok + j,
@@ -444,7 +450,6 @@ int json_events(const char *fn,
 					NULL);
 			} else if (json_streq(map, field, "Unit")) {
 				const char *ppmu;
-				char *s;
 
 				ppmu = field_to_perf(unit_to_pmu, map, val);
 				if (ppmu) {
@@ -464,6 +469,10 @@ int json_events(const char *fn,
 				addfield(map, &unit, "", "", val);
 			} else if (json_streq(map, field, "PerPkg")) {
 				addfield(map, &perpkg, "", "", val);
+			} else if (json_streq(map, field, "MetricExpr")) {
+				addfield(map, &metric_expr, "", "", val);
+				for (s = metric_expr; *s; s++)
+					*s = tolower(*s);
 			}
 			/* ignore unknown fields */
 		}
@@ -488,7 +497,7 @@ int json_events(const char *fn,
 		fixname(name);
 
 		err = func(data, name, real_event(name, event), desc, long_desc,
-				pmu, unit, perpkg);
+				pmu, unit, perpkg, metric_expr);
 		free(event);
 		free(desc);
 		free(name);
@@ -498,6 +507,7 @@ int json_events(const char *fn,
 		free(filter);
 		free(perpkg);
 		free(unit);
+		free(metric_expr);
 		if (err)
 			break;
 		tok += j;
diff --git a/tools/perf/pmu-events/jevents.h b/tools/perf/pmu-events/jevents.h
index 71e13de31092..57e111bf2168 100644
--- a/tools/perf/pmu-events/jevents.h
+++ b/tools/perf/pmu-events/jevents.h
@@ -5,7 +5,7 @@ int json_events(const char *fn,
 		int (*func)(void *data, char *name, char *event, char *desc,
 				char *long_desc,
 				char *pmu,
-				char *unit, char *perpkg),
+				char *unit, char *perpkg, char *metric_expr),
 		void *data);
 char *get_cpu_str(void);
 
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index c669a3cdb9f0..d046e3a4ce46 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -13,6 +13,7 @@ struct pmu_event {
 	const char *pmu;
 	const char *unit;
 	const char *perpkg;
+	const char *metric_expr;
 };
 
 /*
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 12f84dd2ac5d..c0d487b3b925 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -231,7 +231,8 @@ static int perf_pmu__parse_snapshot(struct perf_pmu_alias *alias,
 static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
 				 char *desc, char *val,
 				 char *long_desc, char *topic,
-				 char *unit, char *perpkg)
+				 char *unit, char *perpkg,
+				 char *metric_expr)
 {
 	struct perf_pmu_alias *alias;
 	int ret;
@@ -265,6 +266,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
 		perf_pmu__parse_snapshot(alias, dir, name);
 	}
 
+	alias->metric_expr = metric_expr ? strdup(metric_expr) : NULL;
 	alias->desc = desc ? strdup(desc) : NULL;
 	alias->long_desc = long_desc ? strdup(long_desc) :
 				desc ? strdup(desc) : NULL;
@@ -294,7 +296,7 @@ static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FI
 	buf[ret] = 0;
 
 	return __perf_pmu__new_alias(list, dir, name, NULL, buf, NULL, NULL, NULL,
-				     NULL);
+				     NULL, NULL);
 }
 
 static inline bool pmu_alias_info_file(char *name)
@@ -564,7 +566,8 @@ static void pmu_add_cpu_aliases(struct list_head *head, const char *name)
 		__perf_pmu__new_alias(head, NULL, (char *)pe->name,
 				(char *)pe->desc, (char *)pe->event,
 				(char *)pe->long_desc, (char *)pe->topic,
-				(char *)pe->unit, (char *)pe->perpkg);
+				(char *)pe->unit, (char *)pe->perpkg,
+				(char *)pe->metric_expr);
 	}
 
 out:
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 00852ddc7741..3dccb15f29e9 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -50,6 +50,7 @@ struct perf_pmu_alias {
 	double scale;
 	bool per_pkg;
 	bool snapshot;
+	char *metric_expr;
 };
 
 struct perf_pmu *perf_pmu__find(const char *name);
-- 
2.9.3

  parent reply	other threads:[~2017-03-24 15:44 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-24 14:57 [GIT PULL 00/20] perf/core improvements and fixes Arnaldo Carvalho de Melo
2017-03-24 14:57 ` Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 01/20] perf probe: Change MAX_CMDLEN Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 02/20] perf probe: Return errno when not hitting any event Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 03/20] perf sdt: Add scanning of sdt probes arguments Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 04/20] perf probe: Add sdt probes arguments into the uprobe cmd string Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 05/20] perf sdt x86: Add renaming logic for rNN and other registers Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 06/20] perf annotate: More exactly grep -v of the objdump command Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 07/20] perf annotate: Add comment clarifying how the source code line is parsed Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 08/20] perf stat: Factor out callback for collecting event values Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 09/20] perf stat: Collapse identically named events Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 10/20] perf stat: Handle partially bad results with merging Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 11/20] perf tools: Factor out PMU matching in parser Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 12/20] perf pmu: Expand PMU events by prefix match Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 13/20] perf pmu: Special case uncore_ prefix Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 14/20] perf tools: Add a simple expression parser for JSON Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 15/20] perf vendor events intel: Update Intel uncore JSON event files Arnaldo Carvalho de Melo
2017-03-24 14:57 ` Arnaldo Carvalho de Melo [this message]
2017-03-24 14:57 ` [PATCH 17/20] perf stat: Output JSON MetricExpr metric Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 18/20] perf list: Support printing MetricExpr with --debug Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 19/20] perf pmu: Add support for MetricName JSON attribute Arnaldo Carvalho de Melo
2017-03-24 14:57 ` [PATCH 20/20] perf list: Move extra details printing to new option Arnaldo Carvalho de Melo
2017-03-24 18:39 ` [GIT PULL 00/20] perf/core improvements and fixes Ingo Molnar
2017-03-24 18:39   ` Ingo Molnar

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