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authorIngo Molnar <mingo@kernel.org>2016-10-28 19:37:34 +0200
committerIngo Molnar <mingo@kernel.org>2016-10-28 19:37:34 +0200
commit91a79e5fa696fa626bfbd47f827eaf3eb7d76dc5 (patch)
tree4a9c4582fa25b2d59d0b8a67516d28b0f8da1776 /tools/perf/bench/futex-wake-parallel.c
parent76e2d2617d767c445498c4c4b1162eb2201cdd77 (diff)
parent46cb25b1a0ee74bf4a79cfb3081ae3567b2f7135 (diff)
Merge tag 'perf-core-for-mingo-20161028' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
perf/core improvements and fixes from Arnaldo Carvalho de Melo: New features: - Support matching by topic in 'perf list' (Andi Kleen) User visible: - Apply cpu color only when there was activity in 'perf sched map' (Namhyung Kim) - Always show the task's COMM in 'perf sched map -v' (Namhyung Kim) - Fix hierarchy column counts in the perf hist browser (top, report), avoiding showing nothing after pressing the RIGHT key a number of times (Namhyung Kim) Infrastructure: - Support cascading options in libsubcmd and use it to share common options in 'perf sched' subcommands (Namhyung Kim) - Avoid worker cacheline bouncing in 'perf bench futex' (Davidlohr Bueso) - Sanitize numeric parameters in 'perf bench futex' (Davidlohr Bueso) - Update copies of kernel files (Arnaldo Carvalho de Melo) - Fix scripting (perl, python) setup to avoid leaks (Arnaldo Carvalho de Melo) - Add missing object file to the python binding linkage list (Arnaldo Carvalho de Melo) 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-wake-parallel.c')
-rw-r--r--tools/perf/bench/futex-wake-parallel.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/bench/futex-wake-parallel.c b/tools/perf/bench/futex-wake-parallel.c
index 2c8fa67ad537..beaa6c142477 100644
--- a/tools/perf/bench/futex-wake-parallel.c
+++ b/tools/perf/bench/futex-wake-parallel.c
@@ -217,8 +217,12 @@ int bench_futex_wake_parallel(int argc, const char **argv,
sigaction(SIGINT, &act, NULL);
ncpus = sysconf(_SC_NPROCESSORS_ONLN);
+ nwaking_threads = futexbench_sanitize_numeric(nwaking_threads);
+
if (!nblocked_threads)
nblocked_threads = ncpus;
+ else
+ nblocked_threads = futexbench_sanitize_numeric(nblocked_threads);
/* some sanity checks */
if (nwaking_threads > nblocked_threads || !nwaking_threads)