diff options
| author | Ingo Molnar <mingo@kernel.org> | 2014-06-25 07:42:24 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-06-25 07:42:24 +0200 |
| commit | 06c654ca8b824e04f59f3f99d403494a140c181f (patch) | |
| tree | 75c82621d95feab7b7e01e31e85bd7a95f7f28dc /tools/perf/bench/futex-requeue.c | |
| parent | 98d350cf7ae077eb8083ccc7c1bfc838344ac590 (diff) | |
| parent | ecdac96899e3db3f428e4d2e978f25e3f8d35a6c (diff) | |
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
User visible changes:
* Add --repeat global option to 'perf bench' to be used in benchmarks
such as the existing 'futex' one, that was modified to use it instead
of a local option. (Davidlohr Bueso)
* Fix fd -> pathname resolution in 'trace', be it using /proc or
a vfs_getname probe point. (Arnaldo Carvalho de Melo)
* Add suggestion of how to set perf_event_paranoid sysctl, to help
non-root users trying tools like 'trace' to get a working environment.
(Arnaldo Carvalho de Melo)
Fixes:
* Fix memory leak in the 'sched-messaging' perf bench test. (Davidlohr Bueso)
* The -o and -n 'perf bench mem' options are mutually exclusive, emit error
when both are specified. (Davidlohr Bueso)
* Fix scrollbar refresh row index in the ui browser, problem exposed now
that headers will be added and will be allowed to be switched on/off.
(Jiri Olsa)
Cleanups:
* Remove needless reassignments in 'trace' (Arnaldo Carvalho de Melo)
* Cache the is_exit syscall test in 'trace) (Arnaldo Carvalho de Melo)
* No need to reimplement err() in 'perf bench sched-messaging', drop barf().
(Davidlohr Bueso).
* Remove ev_name argument from perf_evsel__hists_browse, can be obtained
from the other parameters. (Jiri Olsa)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/bench/futex-requeue.c')
| -rw-r--r-- | tools/perf/bench/futex-requeue.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c index a16255876f1..732403bfd31 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; |