From: Stephane Eranian <eranian@google.com>
Date: Thu, 24 Jan 2013 15:10:37 +0000 (+0100)
Subject: perf record: Add support for mem access profiling
X-Git-Tag: v3.12-rc1~982^2~15^2~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ccf49bfc6bb1025788637417780e9f1eeae9fc37;p=kernel%2Fkernel-generic.git

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>
---

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;