lkml.org 
[lkml]   [2013]   [Jan]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v7 13/18] perf record: add support for mem access profiling
Date
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>
---
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 49daa7b..277b98d 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -501,6 +501,9 @@ void perf_evsel__config(struct perf_evsel *evsel,
attr->sample_type |= PERF_SAMPLE_CPU;
}

+ if (opts->sample_address)
+ attr->sample_type |= PERF_SAMPLE_DSRC;
+
if (opts->no_delay) {
attr->watermark = 0;
attr->wakeup_events = 1;
--
1.7.9.5


\
 
 \ /
  Last update: 2013-01-24 17:21    [W:2.344 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site