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perf report: Fix and improve the displaying of per-thread event counters

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Improve and fix the handling of per-thread counter stats
recorded via perf record -s. Previously we only displayed
it in debug printouts (-D) and even that output was hard
to disambiguate.

I moved everything to utils/values.[ch] so that we may reuse
it in perf stat.

We get something like this now:

 #  PID   TID  cache-misses  cache-references
   4658  4659        495581           3238779
   4658  4662        498246           3236823
   4658  4663        499531           3243162

Then it'll be easy to add --pretty=raw to display a single line per thread/event.

By the way, -S was also used for --symbol... So I used -T/--thread here.

perf report: Add -T/--threads to display per-thread counter values

 We get something like this now:
 #  PID   TID  cache-misses  cache-references
   4658  4659        495581           3238779
   4658  4662        498246           3236823
   4658  4663        499531           3243162

Per-thread arrays of counter values are managed in utils/values.[ch]

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus@samba.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Brice Goglin
2009-08-07 13:55:24 +02:00
committed by Ingo Molnar
parent 30dd568c91
commit 8d51327090
5 changed files with 227 additions and 0 deletions
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26
tools/perf/util/values.h Normal file
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@@ -0,0 +1,26 @@
#ifndef _PERF_VALUES_H
#define _PERF_VALUES_H
#include "types.h"
struct perf_read_values {
int threads;
int threads_max;
u32 *pid, *tid;
int counters;
int counters_max;
u64 *counterrawid;
char **countername;
u64 **value;
};
void perf_read_values_init(struct perf_read_values *values);
void perf_read_values_destroy(struct perf_read_values *values);
void perf_read_values_add_value(struct perf_read_values *values,
u32 pid, u32 tid,
u64 rawid, char *name, u64 value);
void perf_read_values_display(FILE *fp, struct perf_read_values *values);
#endif /* _PERF_VALUES_H */