Add counters for rmw atomic operations to microbenchmarks
diff --git a/src/core/lib/support/sync_posix.c b/src/core/lib/support/sync_posix.c
index de0f048..3b7d780 100644
--- a/src/core/lib/support/sync_posix.c
+++ b/src/core/lib/support/sync_posix.c
@@ -42,8 +42,9 @@
#include <time.h>
#include "src/core/lib/profiling/timers.h"
-#ifdef GPR_MU_COUNTERS
-gpr_atm grpc_mu_locks = 0;
+#ifdef GPR_LOW_LEVEL_COUNTERS
+gpr_atm gpr_mu_locks = 0;
+gpr_atm gpr_counter_rmw = 0;
#endif
void gpr_mu_init(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_init(mu, NULL) == 0); }
@@ -51,8 +52,8 @@
void gpr_mu_destroy(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_destroy(mu) == 0); }
void gpr_mu_lock(gpr_mu* mu) {
-#ifdef GPR_MU_COUNTERS
- gpr_atm_no_barrier_fetch_add(&grpc_mu_locks, 1);
+#ifdef GPR_LOW_LEVEL_COUNTERS
+ GPR_ATM_INC_COUNTER(gpr_mu_locks);
#endif
GPR_TIMER_BEGIN("gpr_mu_lock", 0);
GPR_ASSERT(pthread_mutex_lock(mu) == 0);