diff options
| author | Namhyung Kim <namhyung.kim@lge.com> | 2012-05-16 18:45:49 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-05-17 12:32:54 -0300 |
| commit | d1cb9fce92c41454bd594fb0920575fc63301878 (patch) | |
| tree | 02b1c6b97504b2ba3a2a8f3e33bbb651bb6e98e2 /tools/perf/util | |
| parent | 879d77d0cbe20ad1d6099a1e16f03b72c0649828 (diff) | |
| download | linux-topics-d1cb9fce92c41454bd594fb0920575fc63301878.tar.gz | |
perf target: Add uses_mmap field
If perf doesn't mmap on event (like perf stat), it should not create
per-task-per-cpu events. So just use a dummy cpu map to create a
per-task event for this case.
Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1337161549-9870-3-git-send-email-namhyung.kim@lge.com
[ committer note: renamed .need_mmap to .uses_mmap ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/evlist.c | 2 | ||||
| -rw-r--r-- | tools/perf/util/target.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 87889f32567..4ac5f5ae4ce 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -611,6 +611,8 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, if (perf_target__has_task(target)) evlist->cpus = cpu_map__dummy_new(); + else if (!perf_target__has_cpu(target) && !target->uses_mmap) + evlist->cpus = cpu_map__dummy_new(); else evlist->cpus = cpu_map__new(target->cpu_list); diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h index c43f632955f..a4be8575fda 100644 --- a/tools/perf/util/target.h +++ b/tools/perf/util/target.h @@ -11,6 +11,7 @@ struct perf_target { const char *uid_str; uid_t uid; bool system_wide; + bool uses_mmap; }; enum perf_target_errno { |