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perf_counter tools: Normalize data using per sample period data

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When we use variable period sampling, add the period to the sample
data and use that to normalize the samples.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2009-06-10 21:45:22 +02:00 • committed by Ingo Molnar
parent 66fff22483
commit ea1900e571
2 changed files with 13 additions and 8 deletions
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3
tools/perf/builtin-record.c
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@ -350,8 +350,9 @@ static void create_counter(int counter, int cpu, pid_t pid)
struct perf_counter_attr *attr = attrs + counter;
int track = 1;
attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_PERIOD;
attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
if (freq) {
attr->sample_type |= PERF_SAMPLE_PERIOD;
attr->freq = 1;
attr->sample_freq = freq;
}