diff options
Diffstat (limited to 'tools/perf/bench/futex-hash.c')
| -rw-r--r-- | tools/perf/bench/futex-hash.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/tools/perf/bench/futex-hash.c b/tools/perf/bench/futex-hash.c index d9e5e80bb4d0..da04b8c5568a 100644 --- a/tools/perf/bench/futex-hash.c +++ b/tools/perf/bench/futex-hash.c @@ -39,15 +39,12 @@ static unsigned int threads_starting; static struct stats throughput_stats; static pthread_cond_t thread_parent, thread_worker; -#define SMP_CACHE_BYTES 256 -#define __cacheline_aligned __attribute__ ((aligned (SMP_CACHE_BYTES))) - struct worker { int tid; u_int32_t *futex; pthread_t thread; unsigned long ops; -} __cacheline_aligned; +}; static const struct option options[] = { OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"), @@ -66,8 +63,9 @@ static const char * const bench_futex_hash_usage[] = { static void *workerfn(void *arg) { int ret; - unsigned int i; struct worker *w = (struct worker *) arg; + unsigned int i; + unsigned long ops = w->ops; /* avoid cacheline bouncing */ pthread_mutex_lock(&thread_lock); threads_starting--; @@ -77,7 +75,7 @@ static void *workerfn(void *arg) pthread_mutex_unlock(&thread_lock); do { - for (i = 0; i < nfutexes; i++, w->ops++) { + for (i = 0; i < nfutexes; i++, ops++) { /* * We want the futex calls to fail in order to stress * the hashing of uaddr and not measure other steps, @@ -91,6 +89,7 @@ static void *workerfn(void *arg) } } while (!done); + w->ops = ops; return NULL; } |