Commit ccf49bfc authored Jan 24, 2013 by Stephane Eranian Committed by Arnaldo Carvalho de Melo Apr 01, 2013

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>

parent 98a3b32c

tools/perf/util/evsel.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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;