diff options
| author | Davidlohr Bueso <davidlohr@hp.com> | 2014-06-16 22:14:23 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-06-19 23:13:16 +0400 |
| commit | d9de84afd1f3a464135abe2b26e66aa86be5af8d (patch) | |
| tree | 6893d5c8b1f7998242f0b73d9b6ec47a4af01327 /tools/perf/bench/futex-wake.c | |
| parent | b6f0629a94f7ed6089560be7f0561be19f934fc4 (diff) | |
| download | linux-d9de84afd1f3a464135abe2b26e66aa86be5af8d.tar.xz | |
perf bench futex: Use global --repeat option
This option is available through perf-bench, use it instead and free the
local option.
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1402942467-10671-6-git-send-email-davidlohr@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/bench/futex-wake.c')
| -rw-r--r-- | tools/perf/bench/futex-wake.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/tools/perf/bench/futex-wake.c b/tools/perf/bench/futex-wake.c index d096169b161e..50022cbce87e 100644 --- a/tools/perf/bench/futex-wake.c +++ b/tools/perf/bench/futex-wake.c @@ -30,15 +30,8 @@ static u_int32_t futex1 = 0; */ static unsigned int nwakes = 1; -/* - * There can be significant variance from run to run, - * the more repeats, the more exact the overall avg and - * the better idea of the futex latency. - */ -static unsigned int repeat = 10; - pthread_t *worker; -static bool done = 0, silent = 0; +static bool done = false, silent = false; static pthread_mutex_t thread_lock; static pthread_cond_t thread_parent, thread_worker; static struct stats waketime_stats, wakeup_stats; @@ -47,7 +40,6 @@ static unsigned int ncpus, threads_starting, nthreads = 0; static const struct option options[] = { OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"), OPT_UINTEGER('w', "nwakes", &nwakes, "Specify amount of threads to wake at once"), - OPT_UINTEGER('r', "repeat", &repeat, "Specify amount of times to repeat the run"), OPT_BOOLEAN( 's', "silent", &silent, "Silent mode: do not display data/details"), OPT_END() }; @@ -149,7 +141,7 @@ int bench_futex_wake(int argc, const char **argv, pthread_cond_init(&thread_parent, NULL); pthread_cond_init(&thread_worker, NULL); - for (j = 0; j < repeat && !done; j++) { + for (j = 0; j < bench_repeat && !done; j++) { unsigned int nwoken = 0; struct timeval start, end, runtime; |