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authorJiri Olsa <jolsa@redhat.com>2015-06-04 16:50:55 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-06-08 16:30:30 +0300
commite2f56da1d6670070f6f55d43007cb7b03ee04c2f (patch)
tree370c939f0fbba94fe15ace10d7dd515a1b0b3ce7 /tools/perf/util/stat.c
parenta3d86542de8850be52e8589da22b24002941dfb7 (diff)
downloadlinux-e2f56da1d6670070f6f55d43007cb7b03ee04c2f.tar.xz
perf stat: Add id into perf_stat struct
We need fast way to identify evsel as transaction event for shadow counters computation. Currently we are using possition (in evlist) based way. Adding 'id' into 'struct perf_stat' so it can carry transaction event ID and we can use it for shadow counters computations. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20150604135055.GB23625@krava.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/stat.c')
-rw-r--r--tools/perf/util/stat.c31
1 files changed, 30 insertions, 1 deletions
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 6506b3dfb605..8e9f6bb7581b 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -1,6 +1,6 @@
#include <math.h>
-
#include "stat.h"
+#include "evsel.h"
void update_stats(struct stats *stats, u64 val)
{
@@ -61,3 +61,32 @@ double rel_stddev_stats(double stddev, double avg)
return pct;
}
+
+bool __perf_evsel_stat__is(struct perf_evsel *evsel,
+ enum perf_stat_evsel_id id)
+{
+ struct perf_stat *ps = evsel->priv;
+
+ return ps->id == id;
+}
+
+#define ID(id, name) [PERF_STAT_EVSEL_ID__##id] = #name
+static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = {
+ ID(NONE, x),
+};
+#undef ID
+
+void perf_stat_evsel_id_init(struct perf_evsel *evsel)
+{
+ struct perf_stat *ps = evsel->priv;
+ int i;
+
+ /* ps->id is 0 hence PERF_STAT_EVSEL_ID__NONE by default */
+
+ for (i = 0; i < PERF_STAT_EVSEL_ID__MAX; i++) {
+ if (!strcmp(perf_evsel__name(evsel), id_str[i])) {
+ ps->id = i;
+ break;
+ }
+ }
+}