diff options
Diffstat (limited to 'tools/perf/bench/futex-requeue.c')
| -rw-r--r-- | tools/perf/bench/futex-requeue.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c index 66747bfe22cf..73d4a6c3fe52 100644 --- a/tools/perf/bench/futex-requeue.c +++ b/tools/perf/bench/futex-requeue.c @@ -27,6 +27,7 @@ #include <err.h> #include <stdlib.h> #include <sys/time.h> +#include <sys/mman.h> static u_int32_t futex1 = 0, futex2 = 0; @@ -51,6 +52,7 @@ static const struct option options[] = { OPT_UINTEGER('q', "nrequeue", ¶ms.nrequeue, "Specify amount of threads to requeue at once"), OPT_BOOLEAN( 's', "silent", ¶ms.silent, "Silent mode: do not display data/details"), OPT_BOOLEAN( 'S', "shared", ¶ms.fshared, "Use shared futexes instead of private ones"), + OPT_BOOLEAN( 'm', "mlockall", ¶ms.mlockall, "Lock all current and future memory"), OPT_END() }; @@ -134,6 +136,11 @@ int bench_futex_requeue(int argc, const char **argv) act.sa_sigaction = toggle_done; sigaction(SIGINT, &act, NULL); + if (params.mlockall) { + if (mlockall(MCL_CURRENT | MCL_FUTURE)) + err(EXIT_FAILURE, "mlockall"); + } + if (!params.nthreads) params.nthreads = cpu->nr; |