| Date | Tue, 2 Apr 2013 02:51:54 -0700 | From | tip-bot for Stephane Eranian <> | Subject | [tip:perf/core] perf record: Add support for mem access profiling |
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Commit-ID: ccf49bfc6bb1025788637417780e9f1eeae9fc37 Gitweb: http://git.kernel.org/tip/ccf49bfc6bb1025788637417780e9f1eeae9fc37 Author: Stephane Eranian <eranian@google.com> AuthorDate: Thu, 24 Jan 2013 16:10:37 +0100 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Mon, 1 Apr 2013 12:20:28 -0300
perf record: Add support for mem access profiling
We use the -W option to obtain the cost of the memory accesses.
Data address sampling is obtained via the -d option.
Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1359040242-8269-14-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/evsel.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 5c4ca51..07b1a3a 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -554,6 +554,9 @@ void perf_evsel__config(struct perf_evsel *evsel, perf_evsel__set_sample_bit(evsel, CPU); } + if (opts->sample_address) + attr->sample_type |= PERF_SAMPLE_DATA_SRC; + if (opts->no_delay) { attr->watermark = 0; attr->wakeup_events = 1;
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