1 // Mini-benchmark for tsan: non-shared memory writes.
9 const int kNumIter = 1000;
11 __attribute__((noinline))
13 for (int i = 0, n = len; i < n; i++)
17 void *Thread(void *arg) {
19 printf("Thread %ld started\n", idx);
20 for (int i = 0; i < kNumIter; i++)
22 printf("Thread %ld done\n", idx);
26 int main(int argc, char **argv) {
32 n_threads = atoi(argv[1]);
33 assert(n_threads > 0 && n_threads <= 32);
36 printf("%s: n_threads=%d len=%d iter=%d\n",
37 __FILE__, n_threads, len, kNumIter);
38 a = new int[n_threads * len];
39 pthread_t *t = new pthread_t[n_threads];
40 for (int i = 0; i < n_threads; i++) {
41 pthread_create(&t[i], 0, Thread, (void*)i);
43 for (int i = 0; i < n_threads; i++) {
44 pthread_join(t[i], 0);