[PATCH 15/15] perf stat: Use --big-num format by default

From: Arnaldo Carvalho de Melo
Date: Wed Dec 01 2010 - 13:01:35 EST


From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

[acme@mica linux]$ perf stat ls > /dev/null

Performance counter stats for 'ls':

1.512532 task-clock-msecs # 0.801 CPUs
2 context-switches # 0.001 M/sec
0 CPU-migrations # 0.000 M/sec
241 page-faults # 0.159 M/sec
2,973,331 cycles # 1965.797 M/sec
1,460,802 instructions # 0.491 IPC
314,642 branches # 208.023 M/sec
18,475 branch-misses # 5.872 %
<not counted> cache-references
<not counted> cache-misses

0.001887676 seconds time elapsed

To get the previous behaviour just use --no-big-num:

[acme@mica linux]$ perf stat --no-big-num ls > /dev/null

Performance counter stats for 'ls':

1.468014 task-clock-msecs # 0.795 CPUs
1 context-switches # 0.001 M/sec
0 CPU-migrations # 0.000 M/sec
241 page-faults # 0.164 M/sec
2900254 cycles # 1975.631 M/sec
1437991 instructions # 0.496 IPC
310905 branches # 211.786 M/sec
17912 branch-misses # 5.761 %
<not counted> cache-references
<not counted> cache-misses

0.001845435 seconds time elapsed

[acme@mica linux]$

Suggested-by: Ingo Molnar <mingo@xxxxxxx>
Cc: FrÃdÃric Weisbecker <fweisbec@xxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-stat.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 970a7f2..acbf7cc 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -82,7 +82,7 @@ static pid_t *all_tids = NULL;
static int thread_num = 0;
static pid_t child_pid = -1;
static bool null_run = false;
-static bool big_num = false;
+static bool big_num = true;
static const char *cpu_list;


--
1.6.2.5

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