diff options
| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-15 17:15:09 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-15 17:41:25 -0300 |
| commit | 2eea0b56b0d6ace0172550477220a25d633ec5b9 (patch) | |
| tree | de2af5d18ddad0a7e806e70f694408a15cbc1518 /tools/perf/util/evlist.c | |
| parent | perf cpumap: Add is_dummy() method (diff) | |
| download | linux-dev-2eea0b56b0d6ace0172550477220a25d633ec5b9.tar.xz linux-dev-2eea0b56b0d6ace0172550477220a25d633ec5b9.zip | |
perf evlist: No need to do any affinity setup when profiling pids
The cpumap is dummy, so no need to go on figuring out affinity.o
This way we reduce the setup time for simple scenarios like:
$ perf stat sleep 1
Acked-by: Andi Kleen <andi@firstfloor.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist.c')
| -rw-r--r-- | tools/perf/util/evlist.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 11eb95b2106b..6e88d404b5b3 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1290,7 +1290,7 @@ void evlist__close(struct evlist *evlist) * With perf record core.cpus is usually NULL. * Use the old method to handle this for now. */ - if (!evlist->core.cpus) { + if (!evlist->core.cpus || cpu_map__is_dummy(evlist->core.cpus)) { evlist__for_each_entry_reverse(evlist, evsel) evsel__close(evsel); return; |