system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-22 03:55:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

perf record: Add support for mem access profiling

Browse source 
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>
This commit is contained in:
Stephane Eranian 2013-01-24 16:10:37 +01:00 committed by Arnaldo Carvalho de Melo
parent 98a3b32c99
commit ccf49bfc6b
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
tools/perf/util/evsel.c
View file

@ -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;