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| author | Jiri Olsa <jolsa@redhat.com> | 2015-08-08 20:12:10 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-08-10 17:58:05 +0300 |
| commit | ab35a7d0ee59a36c9c567defe43c1adb72e9240c (patch) | |
| tree | a3468583486c189651932c582f09169bbd0f8a32 | |
| parent | a9710ba091b0dcdace90f791706e9192313ffb7c (diff) | |
| download | linux-ab35a7d0ee59a36c9c567defe43c1adb72e9240c.tar.xz | |
perf tools: Unset perf_event_attr::freq when period term is set
We need to unset 'perf_event_attr::freq' bit (default 1) when
'period' term is specified within event definition like:
-e 'cpu/cpu-cycles,call-graph=fp,time,period=100000'
otherwise it will handle the period value as frequency
(and fail if it crossed the maximum allowed frequency value).
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20150808171210.GC17040@krava.brq.redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/evsel.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index f572f469a30d..a59710f88d8a 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -598,6 +598,7 @@ static void apply_config_terms(struct perf_evsel *evsel) switch (term->type) { case PERF_EVSEL__CONFIG_TERM_PERIOD: attr->sample_period = term->val.period; + attr->freq = 0; break; case PERF_EVSEL__CONFIG_TERM_TIME: if (term->val.time) |