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| author | Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> | 2009-11-11 00:04:01 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-10 19:56:45 +0100 |
| commit | ff676b193a401b23c84a79a7ec06559f3eaae917 (patch) | |
| tree | 7b66a2bbc2659c7aab6b90ca16e9b9ecbb461253 /tools/perf/bench/sched-pipe.c | |
| parent | 79e295d4bd0f524257299e7c4e42f643f21abcc2 (diff) | |
| download | op-kernel-dev-ff676b193a401b23c84a79a7ec06559f3eaae917.zip op-kernel-dev-ff676b193a401b23c84a79a7ec06559f3eaae917.tar.gz | |
perf bench: Improve sched-pipe.c with more comfortable output
This patch improves sched-pipe.c with more comfortable output.
Change points are comment style description and
formatting numerical values and its units.
Example:
| % ./perf bench sched pipe
| # Running sched/pipe benchmark...
| # Extecuted 1000000 pipe operations between two tasks
|
| Total time:5.822 [sec]
|
| 5.822553 usecs/op
| 171745 ops/sec
Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1257865442-20252-3-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/bench/sched-pipe.c')
| -rw-r--r-- | tools/perf/bench/sched-pipe.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/tools/perf/bench/sched-pipe.c b/tools/perf/bench/sched-pipe.c index a9ac186..238185f 100644 --- a/tools/perf/bench/sched-pipe.c +++ b/tools/perf/bench/sched-pipe.c @@ -92,17 +92,18 @@ int bench_sched_pipe(int argc, const char **argv, switch (bench_format) { case BENCH_FORMAT_DEFAULT: - printf("(executing %d pipe operations between two tasks)\n\n", + printf("# Extecuted %d pipe operations between two tasks\n\n", loops); result_usec = diff.tv_sec * 1000000; result_usec += diff.tv_usec; - printf("\tTotal time:%lu.%03lu sec\n", - diff.tv_sec, diff.tv_usec / 1000); - printf("\t\t%lf usecs/op\n", + printf(" %14s: %lu.%03lu [sec]\n\n", "Total time", + diff.tv_sec, diff.tv_usec/1000); + + printf(" %14lf usecs/op\n", (double)result_usec / (double)loops); - printf("\t\t%d ops/sec\n", + printf(" %14d ops/sec\n", (int)((double)loops / ((double)result_usec / (double)1000000))); break; |
