From d9de84afd1f3a464135abe2b26e66aa86be5af8d Mon Sep 17 00:00:00 2001 From: Davidlohr Bueso Date: Mon, 16 Jun 2014 11:14:23 -0700 Subject: [PATCH] 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 Cc: Aswin Chandramouleeswaran Cc: Hitoshi Mitake Cc: Jiri Olsa Link: http://lkml.kernel.org/r/1402942467-10671-6-git-send-email-davidlohr@hp.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/bench/futex-requeue.c | 10 +--------- tools/perf/bench/futex-wake.c | 12 ++---------- 2 files changed, 3 insertions(+), 19 deletions(-) diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c index a16255876f1d..732403bfd31a 100644 --- a/tools/perf/bench/futex-requeue.c +++ b/tools/perf/bench/futex-requeue.c @@ -29,13 +29,6 @@ static u_int32_t futex1 = 0, futex2 = 0; */ static unsigned int nrequeue = 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; - static pthread_t *worker; static bool done = 0, silent = 0; static pthread_mutex_t thread_lock; @@ -46,7 +39,6 @@ static unsigned int ncpus, threads_starting, nthreads = 0; static const struct option options[] = { OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"), OPT_UINTEGER('q', "nrequeue", &nrequeue, "Specify amount of threads to requeue 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() }; @@ -146,7 +138,7 @@ int bench_futex_requeue(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 nrequeued = 0; struct timeval start, end, runtime; 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; -- 2.45.2