thread_info_t *ti = (thread_info_t *)arg;
SET_THREAD_LOCAL(tid_, ti->thread_id);
LOCALIZE_THREAD_LOCAL(tid_, int);
+#ifndef NDEBUG
SET_THREAD_LOCAL(rand_seed_, tid_+1);
+#else
+ SET_THREAD_LOCAL(rand_seed_, nbd_rand_seed(tid_+1));
+#endif
lwt_thread_init(ti->thread_id);
rcu_thread_init(ti->thread_id);
void *ret = ti->start_routine(ti->arg);
SET_THREAD_LOCAL(rand_seed_, r);
return r;
}
+
+uint64_t nbd_rand_seed (int i) {
+ return rdtsc() + -715159705 + i * 129;
+}
+
+// Fairly fast random numbers
+int nbd_next_rand (uint64_t *r) {
+ *r = (*r * 0x5DEECE66DLL + 0xBLL) & MASK(48);
+ return (*r >> 17) & 0x7FFFFFFF;
+}