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    Subject[PATCH 3/6] perf: add ability to record event period
    Date
    Signed-off-by: Andrew Vagin <avagin@openvz.org>
    ---
    tools/perf/builtin-record.c | 1 +
    tools/perf/perf.h | 1 +
    tools/perf/util/evsel.c | 3 +++
    3 files changed, 5 insertions(+), 0 deletions(-)

    diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
    index 766fa0a..f8fd14f 100644
    --- a/tools/perf/builtin-record.c
    +++ b/tools/perf/builtin-record.c
    @@ -700,6 +700,7 @@ const struct option record_options[] = {
    OPT_BOOLEAN('d', "data", &record.opts.sample_address,
    "Sample addresses"),
    OPT_BOOLEAN('T', "timestamp", &record.opts.sample_time, "Sample timestamps"),
    + OPT_BOOLEAN('P', "period", &record.opts.period, "Sample period"),
    OPT_BOOLEAN('n', "no-samples", &record.opts.no_samples,
    "don't sample"),
    OPT_BOOLEAN('N', "no-buildid-cache", &record.no_buildid_cache,
    diff --git a/tools/perf/perf.h b/tools/perf/perf.h
    index ea804f5..64f8bee 100644
    --- a/tools/perf/perf.h
    +++ b/tools/perf/perf.h
    @@ -200,6 +200,7 @@ struct perf_record_opts {
    bool sample_time;
    bool sample_id_all_avail;
    bool system_wide;
    + bool period;
    unsigned int freq;
    unsigned int mmap_pages;
    unsigned int user_freq;
    diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
    index e2d1b22..8550018 100644
    --- a/tools/perf/util/evsel.c
    +++ b/tools/perf/util/evsel.c
    @@ -108,6 +108,9 @@ void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts)
    if (opts->system_wide)
    attr->sample_type |= PERF_SAMPLE_CPU;

    + if (opts->period)
    + attr->sample_type |= PERF_SAMPLE_PERIOD;
    +
    if (opts->sample_id_all_avail &&
    (opts->sample_time || opts->system_wide ||
    !opts->no_inherit || opts->cpu_list))
    --
    1.7.1


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