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| author | Ingo Molnar <mingo@elte.hu> | 2009-06-05 18:07:51 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-05 18:07:51 +0200 |
| commit | b2fef0762fdb65cf8702eea93f4e58abeb0ecefc (patch) | |
| tree | 8f7c82a62a895f434e9817084f0c5210fd7b1f80 /Documentation/perf_counter/builtin-record.c | |
| parent | 6a24ed6c6082ec65d19331a4bfa30c0512a1a822 (diff) | |
| download | lwn-b2fef0762fdb65cf8702eea93f4e58abeb0ecefc.tar.gz lwn-b2fef0762fdb65cf8702eea93f4e58abeb0ecefc.zip | |
perf_counter tools: Sample and display frequency adjustment changes
To allow the debugging of frequency-adjusting counters, sample
those adjustments and display them in perf report -D.
Acked-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>
Diffstat (limited to 'Documentation/perf_counter/builtin-record.c')
| -rw-r--r-- | Documentation/perf_counter/builtin-record.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/perf_counter/builtin-record.c b/Documentation/perf_counter/builtin-record.c index d4ad3057a711..43ddab31ac39 100644 --- a/Documentation/perf_counter/builtin-record.c +++ b/Documentation/perf_counter/builtin-record.c @@ -347,7 +347,7 @@ static void create_counter(int counter, int cpu, pid_t pid) memset(&attr, 0, sizeof(attr)); attr.config = event_id[counter]; attr.sample_period = event_count[counter]; - attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; + attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_PERIOD; attr.freq = freq; attr.mmap = track; attr.comm = track; |