On Sun, Aug 09, 2015 at 03:45:24PM +0900, Namhyung Kim wrote:
> 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 <namhy...@kernel.org>
Acked-by: Jiri Olsa <jo...@kernel.org>
thanks,
jirka
> ---
> tools/perf/util/evsel.c | 9 +++++++--
> 1 file 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);
> --
> 2.5.0
>
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