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perf evlist: No need to do any affinity setup when profiling pids

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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>
This commit is contained in:
Arnaldo Carvalho de Melo 2022-01-15 17:15:09 -03:00
parent 37be585807
commit 2eea0b56b0
1 changed files with 1 additions and 1 deletions
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tools/perf/util/evlist.c
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@ -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;