[tip:perf/bench] perf bench: Modify builtin-pipe.c for processing common options

From: tip-bot for Hitoshi Mitake
Date: Mon Nov 09 2009 - 23:23:29 EST


Commit-ID: 158ba827f6deef4102c5247ed4b6a587f0bd6a07
Gitweb: http://git.kernel.org/tip/158ba827f6deef4102c5247ed4b6a587f0bd6a07
Author: Hitoshi Mitake <mitake@xxxxxxxxxxxxxxxxxxxxx>
AuthorDate: Tue, 10 Nov 2009 08:20:02 +0900
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Tue, 10 Nov 2009 04:53:49 +0100

perf bench: Modify builtin-pipe.c for processing common options

This patch modifies builtin-pipe.c for processing common
options. The first option added is "--format".
Users of perf bench will be able to specify output style by
--format.

Usage example:

% ./perf bench sched pipe # with no style specify
(executing 1000000 pipe operations between two tasks)

Total time:5.855 sec
5.855061 usecs/op
170792 ops/sec

% ./perf bench --format=simple sched pipe # specified simple
5.988

Signed-off-by: Hitoshi Mitake <mitake@xxxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
LKML-Reference: <1257808802-9420-5-git-send-email-mitake@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
---
tools/perf/bench/sched-pipe.c | 22 ++++++++++++++--------
1 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/tools/perf/bench/sched-pipe.c b/tools/perf/bench/sched-pipe.c
index 6a29100..a9ac186 100644
--- a/tools/perf/bench/sched-pipe.c
+++ b/tools/perf/bench/sched-pipe.c
@@ -30,14 +30,10 @@

#define LOOPS_DEFAULT 1000000
static int loops = LOOPS_DEFAULT;
-static int simple = 0;

static const struct option options[] = {
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()
};

@@ -94,10 +90,8 @@ int bench_sched_pipe(int argc, const char **argv,
return 0;
}

- if (simple)
- printf("%lu.%03lu\n",
- diff.tv_sec, diff.tv_usec / 1000);
- else {
+ switch (bench_format) {
+ case BENCH_FORMAT_DEFAULT:
printf("(executing %d pipe operations between two tasks)\n\n",
loops);

@@ -111,6 +105,18 @@ int bench_sched_pipe(int argc, const char **argv,
printf("\t\t%d ops/sec\n",
(int)((double)loops /
((double)result_usec / (double)1000000)));
+ 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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