diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-04-29 07:49:08 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-29 08:35:55 -0400 |
| commit | d3d1e86da07b4565815e3dbcd082f53017d215f8 (patch) | |
| tree | c2fad06e57607b32d943d6b590325ae5d8ef3d01 /tools/perf/util/parse-events.c | |
| parent | 129c04cb8ce2e4bf3f17223f58ef16aa8a2cb3b8 (diff) | |
perf stat: Analyze front-end and back-end stall counts
Sample output:
Performance counter stats for './loop_1b':
873.691065 task-clock # 1.000 CPUs utilized
1 context-switches # 0.000 M/sec
1 CPU-migrations # 0.000 M/sec
96 page-faults # 0.000 M/sec
2,012,637,222 cycles # 2.304 GHz (66.58%)
1,001,397,911 stalled-cycles-frontend # 49.76% frontend cycles idle (66.58%)
7,523,398 stalled-cycles-backend # 0.37% backend cycles idle (66.76%)
2,004,551,046 instructions # 1.00 insns per cycle
# 0.50 stalled cycles per insn (66.80%)
1,001,304,992 branches # 1146.063 M/sec (66.76%)
39,453 branch-misses # 0.00% of all branches (66.64%)
0.874046121 seconds time elapsed
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/n/tip-7y40wib8n003io7hjpn1dsrm@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/parse-events.c')
| -rw-r--r-- | tools/perf/util/parse-events.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 04d2f0a96674..8a407f3e286f 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c | |||
| @@ -60,7 +60,7 @@ static struct event_symbol event_symbols[] = { | |||
| 60 | #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) | 60 | #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) |
| 61 | #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) | 61 | #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) |
| 62 | 62 | ||
| 63 | static const char *hw_event_names[] = { | 63 | static const char *hw_event_names[PERF_COUNT_HW_MAX] = { |
| 64 | "cycles", | 64 | "cycles", |
| 65 | "instructions", | 65 | "instructions", |
| 66 | "cache-references", | 66 | "cache-references", |
| @@ -68,10 +68,11 @@ static const char *hw_event_names[] = { | |||
| 68 | "branches", | 68 | "branches", |
| 69 | "branch-misses", | 69 | "branch-misses", |
| 70 | "bus-cycles", | 70 | "bus-cycles", |
| 71 | "stalled-cycles", | 71 | "stalled-cycles-frontend", |
| 72 | "stalled-cycles-backend", | ||
| 72 | }; | 73 | }; |
| 73 | 74 | ||
| 74 | static const char *sw_event_names[] = { | 75 | static const char *sw_event_names[PERF_COUNT_SW_MAX] = { |
| 75 | "cpu-clock", | 76 | "cpu-clock", |
| 76 | "task-clock", | 77 | "task-clock", |
| 77 | "page-faults", | 78 | "page-faults", |