Commit ab35a7d0 authored Aug 08, 2015 by Jiri Olsa Committed by Arnaldo Carvalho de Melo Aug 10, 2015

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>

parent a9710ba0

tools/perf/util/evsel.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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)