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Subject[tip:perf/bench] perf bench: Modify bench/bench-messaging.c to adopt unified output formatting
Commit-ID:  cced06c62a9db6bd6d77e3f0a57dbe47a26d881e
Gitweb: http://git.kernel.org/tip/cced06c62a9db6bd6d77e3f0a57dbe47a26d881e
Author: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
AuthorDate: Tue, 10 Nov 2009 08:20:01 +0900
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 10 Nov 2009 04:53:49 +0100

perf bench: Modify bench/bench-messaging.c to adopt unified output formatting

This patch modifies bench/bench-messaging.c to adopt
unified output formatting: --format option.

Usage example:

% ./perf bench sched messaging # with no style
specify (20 sender and receiver processes per group)
(10 groups == 400 processes run)

Total time:1.431 sec

% ./perf bench --format=simple sched messaging # specified
simple 1.431

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: <1257808802-9420-4-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
tools/perf/bench/sched-messaging.c | 18 +++++++++++-------
1 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c
index 36b62c5..2cc5edc 100644
--- a/tools/perf/bench/sched-messaging.c
+++ b/tools/perf/bench/sched-messaging.c
@@ -35,7 +35,6 @@ static int use_pipes = 0;
static unsigned int loops = 100;
static unsigned int thread_mode = 0;
static unsigned int num_groups = 10;
-static int simple = 0;

struct sender_context {
unsigned int num_fds;
@@ -261,9 +260,6 @@ static const struct option options[] = {
"Specify number of groups"),
OPT_INTEGER('l', "loop", &loops,
"Specify number of loops"),
- OPT_BOOLEAN('s', "simple-output", &simple,
- "Do simple output (this maybe useful for"
- "processing by scripts or graph tools like gnuplot)"),
OPT_END()
};

@@ -316,9 +312,8 @@ int bench_sched_messaging(int argc, const char **argv,

timersub(&stop, &start, &diff);

- if (simple)
- printf("%lu.%03lu\n", diff.tv_sec, diff.tv_usec/1000);
- else {
+ switch (bench_format) {
+ case BENCH_FORMAT_DEFAULT:
printf("(%d sender and receiver %s per group)\n",
num_fds, thread_mode ? "threads" : "processes");
printf("(%d groups == %d %s run)\n\n",
@@ -326,6 +321,15 @@ int bench_sched_messaging(int argc, const char **argv,
thread_mode ? "threads" : "processes");
printf("\tTotal time:%lu.%03lu sec\n",
diff.tv_sec, diff.tv_usec/1000);
+ break;
+ case BENCH_FORMAT_SIMPLE:
+ printf("%lu.%03lu\n", diff.tv_sec, diff.tv_usec/1000);
+ break;
+ default:
+ /* reaching here is something disaster */
+ fprintf(stderr, "Unknown format:%d\n", bench_format);
+ exit(1);
+ break;
}

return 0;

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