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@dcl.info.waseda.ac.jp>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1257808802-9420-5-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
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 @@
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 @@
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;