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| author | Jiri Olsa <jolsa@kernel.org> | 2017-07-26 14:02:05 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-07-26 14:21:59 -0300 |
| commit | f7794d525447f1e4e4b2228dd29dba084005e6bf (patch) | |
| tree | 30ebccbdc677b6f20c29e94fe169fe6ef72dff4c /tools/perf/util/evsel.h | |
| parent | de63403bfd14ae8d613f30c9a0d415581b4cb37e (diff) | |
| download | linux-stable-f7794d525447f1e4e4b2228dd29dba084005e6bf.tar.gz linux-stable-f7794d525447f1e4e4b2228dd29dba084005e6bf.tar.bz2 linux-stable-f7794d525447f1e4e4b2228dd29dba084005e6bf.zip | |
perf evsel: Add read_counter()
Add perf_evsel__read_counter() to read single or group counter. After
calling this function the counter's evsel::counts struct is filled with
values for the counter and member of its group if there are any.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170726120206.9099-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evsel.h')
| -rw-r--r-- | tools/perf/util/evsel.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index fb40ca3c6519..de03c18daaf0 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -299,6 +299,8 @@ static inline bool perf_evsel__match2(struct perf_evsel *e1, int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread, struct perf_counts_values *count); +int perf_evsel__read_counter(struct perf_evsel *evsel, int cpu, int thread); + int __perf_evsel__read_on_cpu(struct perf_evsel *evsel, int cpu, int thread, bool scale); |