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>

diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c
index a16255876f1d7822872f7feb9f8e24b5fa90fd13..732403bfd31a9391e50719c182577047a8eb508b 100644 (file)
--- 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 d096169b161eac0fece1c2c46b4dde5f7b224006..50022cbce87e2e124168de5259675dbea300b3b3 100644 (file)
--- 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;