Messages in this thread Patch in this message | | | Date | Tue, 10 Nov 2009 19:01:12 GMT | From | tip-bot for Hitoshi Mitake <> | Subject | [tip:perf/bench] perf bench: Improve sched-pipe.c with more comfortable output |
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Commit-ID: ff676b193a401b23c84a79a7ec06559f3eaae917 Gitweb: http://git.kernel.org/tip/ff676b193a401b23c84a79a7ec06559f3eaae917 Author: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> AuthorDate: Wed, 11 Nov 2009 00:04:01 +0900 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Tue, 10 Nov 2009 19:56:45 +0100
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> --- 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;
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