Re: [PATCH 2/7] perf: add ability to record event period
From: Arnaldo Carvalho de Melo <hidden>
Date: 2011-12-06 14:02:17
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Em Mon, Nov 28, 2011 at 12:03:30PM +0300, Andrew Vagin escreveu:
Signed-off-by: Andrew Vagin <redacted> --- tools/perf/builtin-record.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
This patch doesn't apply in current tip/perf/core as this logic was moved to perf_evsel/perf_evlist, so that it can be used by other tools. Please add the 'period' variable to struct perf_record_opts and the sample_type or'ing to perf_evsel__config(). I suggest you use https://github.com/acmel/linux/commits/perf/core for that. - Arnaldo
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diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 6ab58cc..e3b7fc4 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c@@ -62,6 +62,7 @@ static bool no_samples = false; static bool sample_address = false; static bool sample_time = false; static bool no_buildid = false; +static bool period = false; static bool no_buildid_cache = false; static struct perf_evlist *evsel_list;@@ -185,6 +186,9 @@ static void config_attr(struct perf_evsel *evsel, struct perf_evlist *evlist) if (evlist->nr_entries > 1) attr->sample_type |= PERF_SAMPLE_ID; + if (period) + attr->sample_type |= PERF_SAMPLE_PERIOD; + /* * We default some events to a 1 default interval. But keep * it a weak assumption overridable by the user.@@ -803,6 +807,7 @@ const struct option record_options[] = { OPT_BOOLEAN('d', "data", &sample_address, "Sample addresses"), OPT_BOOLEAN('T', "timestamp", &sample_time, "Sample timestamps"), + OPT_BOOLEAN('P', "period", &period, "Sample period"), OPT_BOOLEAN('n', "no-samples", &no_samples, "don't sample"), OPT_BOOLEAN('N', "no-buildid-cache", &no_buildid_cache,-- 1.7.1