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perf evlist: Open event on evsel cpus and threads 

An evsel may have different cpus and threads than the evlist it is in.

Use it's own cpus and threads, when opening the evsel in 'perf record'.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1440138194-17001-1-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2015-08-21 02:23:14 -04:00 committed by Arnaldo Carvalho de Melo
parent acf860ae7c
commit d988d5ee64
2 changed files with 5 additions and 1 deletions
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2
tools/perf/builtin-record.c
View File

@ -279,7 +279,7 @@ static int record__open(struct record *rec)
evlist__for_each(evlist, pos) {
try_again:
if (perf_evsel__open(pos, evlist->cpus, evlist->threads) < 0) {
if (perf_evsel__open(pos, pos->cpus, pos->threads) < 0) {
if (perf_evsel__fallback(pos, errno, msg, sizeof(msg))) {
if (verbose)
ui__warning("%s\n", msg);

4
tools/perf/util/evlist.c
View File

@ -1181,6 +1181,10 @@ int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **e
if (evsel->filter == NULL)
continue;
/*
* filters only work for tracepoint event, which doesn't have cpu limit.
* So evlist and evsel should always be same.
*/
err = perf_evsel__apply_filter(evsel, ncpus, nthreads, evsel->filter);
if (err) {
*err_evsel = evsel;