hc
2023-11-22 f743a7adbd6e230d66a6206fa115b59fec2d88eb
kernel/tools/perf/bench/futex-lock-pi.c
....@@ -35,7 +35,6 @@
3535 static bool done = false, fshared = false;
3636 static unsigned int nthreads = 0;
3737 static int futex_flag = 0;
38
-struct timeval start, end, runtime;
3938 static pthread_mutex_t thread_lock;
4039 static unsigned int threads_starting;
4140 static struct stats throughput_stats;
....@@ -62,7 +61,7 @@
6261
6362 printf("%sAveraged %ld operations/sec (+- %.2f%%), total secs = %d\n",
6463 !silent ? "\n" : "", avg, rel_stddev_stats(stddev, avg),
65
- (int) runtime.tv_sec);
64
+ (int)bench__runtime.tv_sec);
6665 }
6766
6867 static void toggle_done(int sig __maybe_unused,
....@@ -71,8 +70,8 @@
7170 {
7271 /* inform all threads that we're done for the day */
7372 done = true;
74
- gettimeofday(&end, NULL);
75
- timersub(&end, &start, &runtime);
73
+ gettimeofday(&bench__end, NULL);
74
+ timersub(&bench__end, &bench__start, &bench__runtime);
7675 }
7776
7877 static void *workerfn(void *arg)
....@@ -183,7 +182,7 @@
183182
184183 threads_starting = nthreads;
185184 pthread_attr_init(&thread_attr);
186
- gettimeofday(&start, NULL);
185
+ gettimeofday(&bench__start, NULL);
187186
188187 create_threads(worker, thread_attr, cpu);
189188 pthread_attr_destroy(&thread_attr);
....@@ -209,7 +208,7 @@
209208 pthread_mutex_destroy(&thread_lock);
210209
211210 for (i = 0; i < nthreads; i++) {
212
- unsigned long t = worker[i].ops/runtime.tv_sec;
211
+ unsigned long t = worker[i].ops / bench__runtime.tv_sec;
213212
214213 update_stats(&throughput_stats, t);
215214 if (!silent)