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authorIan Rogers <irogers@google.com>2022-08-26 09:42:26 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-10-04 08:55:19 -0300
commita64d3af5d9eca3058ab6e0d3715ff36e4d6b5983 (patch)
tree07e4613d9dffcc7e22c2c6649c22dbbd5435ff7c /tools/perf/bench/futex-lock-pi.c
parente57d897703c3bf8b66680c69c0e75fbd9d9617f1 (diff)
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perf bench: Update use of pthread mutex/cond
Switch to the use of mutex wrappers that provide better error checking. Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Truong <alexandre.truong@arm.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andres Freund <andres@anarazel.de> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: André Almeida <andrealmeid@igalia.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Colin Ian King <colin.king@intel.com> Cc: Dario Petrillo <dario.pk1@gmail.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Fangrui Song <maskray@google.com> Cc: Hewenliang <hewenliang4@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jason Wang <wangborong@cdjrlc.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kim Phillips <kim.phillips@amd.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin Liška <mliska@suse.cz> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Pavithra Gurushankar <gpavithrasha@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <quentin@isovalent.com> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Remi Bernon <rbernon@codeweavers.com> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Cc: Tom Rix <trix@redhat.com> Cc: Weiguo Li <liwg06@foxmail.com> Cc: Wenyu Liu <liuwenyu7@huawei.com> Cc: William Cohen <wcohen@redhat.com> Cc: Zechuan Chen <chenzechuan1@huawei.com> Cc: bpf@vger.kernel.org Cc: llvm@lists.linux.dev Cc: yaowenbin <yaowenbin1@huawei.com> Link: https://lore.kernel.org/r/20220826164242.43412-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/bench/futex-lock-pi.c')
-rw-r--r--tools/perf/bench/futex-lock-pi.c33
1 files changed, 17 insertions, 16 deletions
diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c
index 0abb3f7ee24f..2d0417949727 100644
--- a/tools/perf/bench/futex-lock-pi.c
+++ b/tools/perf/bench/futex-lock-pi.c
@@ -8,6 +8,7 @@
#include <pthread.h>
#include <signal.h>
+#include "../util/mutex.h"
#include "../util/stat.h"
#include <subcmd/parse-options.h>
#include <linux/compiler.h>
@@ -34,10 +35,10 @@ static u_int32_t global_futex = 0;
static struct worker *worker;
static bool done = false;
static int futex_flag = 0;
-static pthread_mutex_t thread_lock;
+static struct mutex thread_lock;
static unsigned int threads_starting;
static struct stats throughput_stats;
-static pthread_cond_t thread_parent, thread_worker;
+static struct cond thread_parent, thread_worker;
static struct bench_futex_parameters params = {
.runtime = 10,
@@ -83,12 +84,12 @@ static void *workerfn(void *arg)
struct worker *w = (struct worker *) arg;
unsigned long ops = w->ops;
- pthread_mutex_lock(&thread_lock);
+ mutex_lock(&thread_lock);
threads_starting--;
if (!threads_starting)
- pthread_cond_signal(&thread_parent);
- pthread_cond_wait(&thread_worker, &thread_lock);
- pthread_mutex_unlock(&thread_lock);
+ cond_signal(&thread_parent);
+ cond_wait(&thread_worker, &thread_lock);
+ mutex_unlock(&thread_lock);
do {
int ret;
@@ -197,9 +198,9 @@ int bench_futex_lock_pi(int argc, const char **argv)
getpid(), params.nthreads, params.runtime);
init_stats(&throughput_stats);
- pthread_mutex_init(&thread_lock, NULL);
- pthread_cond_init(&thread_parent, NULL);
- pthread_cond_init(&thread_worker, NULL);
+ mutex_init(&thread_lock);
+ cond_init(&thread_parent);
+ cond_init(&thread_worker);
threads_starting = params.nthreads;
pthread_attr_init(&thread_attr);
@@ -208,11 +209,11 @@ int bench_futex_lock_pi(int argc, const char **argv)
create_threads(worker, thread_attr, cpu);
pthread_attr_destroy(&thread_attr);
- pthread_mutex_lock(&thread_lock);
+ mutex_lock(&thread_lock);
while (threads_starting)
- pthread_cond_wait(&thread_parent, &thread_lock);
- pthread_cond_broadcast(&thread_worker);
- pthread_mutex_unlock(&thread_lock);
+ cond_wait(&thread_parent, &thread_lock);
+ cond_broadcast(&thread_worker);
+ mutex_unlock(&thread_lock);
sleep(params.runtime);
toggle_done(0, NULL, NULL);
@@ -224,9 +225,9 @@ int bench_futex_lock_pi(int argc, const char **argv)
}
/* cleanup & report results */
- pthread_cond_destroy(&thread_parent);
- pthread_cond_destroy(&thread_worker);
- pthread_mutex_destroy(&thread_lock);
+ cond_destroy(&thread_parent);
+ cond_destroy(&thread_worker);
+ mutex_destroy(&thread_lock);
for (i = 0; i < params.nthreads; i++) {
unsigned long t = bench__runtime.tv_sec > 0 ?