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perf_counter: Add PERF_SAMPLE_PERIOD

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In order to allow easy tracking of the period, also provide means of
adding it to the sample data.

Signed-off-by: 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 2009-06-05 15:05:43 +02:00 • committed by Ingo Molnar
parent ac4bcf8894
commit 689802b2d0
2 changed files with 12 additions and 0 deletions
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2
include/linux/perf_counter.h
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@ -106,6 +106,7 @@ enum perf_counter_sample_format {
PERF_SAMPLE_CALLCHAIN = 1U << 5,
PERF_SAMPLE_ID = 1U << 6,
PERF_SAMPLE_CPU = 1U << 7,
PERF_SAMPLE_PERIOD = 1U << 8,
};
/*
@ -260,6 +261,7 @@ enum perf_event_type {
* struct {
* struct perf_event_header header;
* u64 time;
* u64 id;
* u64 sample_period;
* };
*/