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Groups > linux.kernel > #1389547
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 11/11] perf, tools, stat: Add extra output of counter values with -vv |
| Date | 2016-04-27 22:10 +0200 |
| Message-ID | <rsDWy-7mg-25@gated-at.bofh.it> (permalink) |
| References | <rsDWy-7mg-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Andi Kleen <ak@linux.intel.com>
Add debug output of raw counter values per CPU when
perf stat -v is specified, together with their cpu numbers.
This is very useful to debug problems with per core counters,
where we can normally only see aggregated values.
v2: Make it depend on -vv, not -v
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/builtin-stat.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 6d8ce72cd8c1..9a2b4510b1e1 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -314,6 +314,14 @@ static int read_counter(struct perf_evsel *counter)
return -1;
}
}
+
+ if (verbose > 1) {
+ fprintf(stat_config.output,
+ "%s: %d: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
+ perf_evsel__name(counter),
+ cpu,
+ count->val, count->ena, count->run);
+ }
}
}
--
2.5.5
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[PATCH 11/11] perf, tools, stat: Add extra output of counter values with -vv Andi Kleen <andi@firstfloor.org> - 2016-04-27 22:10 +0200 [tip:perf/core] perf stat: Add extra output of counter values with -vv tip-bot for Andi Kleen <tipbot@zytor.com> - 2016-05-07 07:00 +0200
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