diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2015-08-09 15:45:24 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-08-10 17:20:26 -0300 |
| commit | 4605bb55b91449a1a953a51f0334d3bc02351adb (patch) | |
| tree | 8f8c997efda7bf335716d36d770520a3e84f900e /tools/perf/util | |
| parent | 09af2a553577a6e53e40011a910be0f27ce56f3e (diff) | |
perf evlist: Be more specific on -F/--freq
Currently perf evlist -F shows the number as if it's always sampling
frequency. But we now support per-event freq/period settings. So it'd
better to show more detailed info whether it's freq or period.
$ perf record -e 'cpu/config=1/,cpu/config=2,period=300000/' sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.017 MB perf.data ]
$ perf evlist -F
cpu/config=1/: sample_freq=4000
cpu/config=2,period=300000/: sample_period=300000
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1439102724-14079-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/evsel.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index f664a22b5fea..04fddddc6b6f 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -2158,8 +2158,13 @@ int perf_evsel__fprintf(struct perf_evsel *evsel, printed += perf_event_attr__fprintf(fp, &evsel->attr, __print_attr__fprintf, &first); } else if (details->freq) { - printed += comma_fprintf(fp, &first, " sample_freq=%" PRIu64, - (u64)evsel->attr.sample_freq); + const char *term = "sample_freq"; + + if (!evsel->attr.freq) + term = "sample_period"; + + printed += comma_fprintf(fp, &first, " %s=%" PRIu64, + term, (u64)evsel->attr.sample_freq); } out: fputc('\n', fp); |