diff options
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; | |||
30 | */ | 30 | */ |
31 | static unsigned int nwakes = 1; | 31 | static unsigned int nwakes = 1; |
32 | 32 | ||
33 | /* | ||
34 | * There can be significant variance from run to run, | ||
35 | * the more repeats, the more exact the overall avg and | ||
36 | * the better idea of the futex latency. | ||
37 | */ | ||
38 | static unsigned int repeat = 10; | ||
39 | |||
40 | pthread_t *worker; | 33 | pthread_t *worker; |
41 | static bool done = 0, silent = 0; | 34 | static bool done = false, silent = false; |
42 | static pthread_mutex_t thread_lock; | 35 | static pthread_mutex_t thread_lock; |
43 | static pthread_cond_t thread_parent, thread_worker; | 36 | static pthread_cond_t thread_parent, thread_worker; |
44 | static struct stats waketime_stats, wakeup_stats; | 37 | static struct stats waketime_stats, wakeup_stats; |
@@ -47,7 +40,6 @@ static unsigned int ncpus, threads_starting, nthreads = 0; | |||
47 | static const struct option options[] = { | 40 | static const struct option options[] = { |
48 | OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"), | 41 | OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"), |
49 | OPT_UINTEGER('w', "nwakes", &nwakes, "Specify amount of threads to wake at once"), | 42 | OPT_UINTEGER('w', "nwakes", &nwakes, "Specify amount of threads to wake at once"), |
50 | OPT_UINTEGER('r', "repeat", &repeat, "Specify amount of times to repeat the run"), | ||
51 | OPT_BOOLEAN( 's', "silent", &silent, "Silent mode: do not display data/details"), | 43 | OPT_BOOLEAN( 's', "silent", &silent, "Silent mode: do not display data/details"), |
52 | OPT_END() | 44 | OPT_END() |
53 | }; | 45 | }; |
@@ -149,7 +141,7 @@ int bench_futex_wake(int argc, const char **argv, | |||
149 | pthread_cond_init(&thread_parent, NULL); | 141 | pthread_cond_init(&thread_parent, NULL); |
150 | pthread_cond_init(&thread_worker, NULL); | 142 | pthread_cond_init(&thread_worker, NULL); |
151 | 143 | ||
152 | for (j = 0; j < repeat && !done; j++) { | 144 | for (j = 0; j < bench_repeat && !done; j++) { |
153 | unsigned int nwoken = 0; | 145 | unsigned int nwoken = 0; |
154 | struct timeval start, end, runtime; | 146 | struct timeval start, end, runtime; |
155 | 147 | ||