diff mbox series

[v3,3/8] test/rwlock: use compiler atomics for lcores sync

Message ID 20210720035125.14214-4-joyce.kong@arm.com (mailing list archive)
State Accepted, archived
Delegated to: David Marchand
Headers
Series use compiler atomic builtins for test |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Joyce Kong July 20, 2021, 3:51 a.m. UTC 
  Convert rte_atomic usages to compiler atomic built-ins for lcores
sync in rwlock testcases.

Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
---
 app/test/test_rwlock.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/app/test/test_rwlock.c b/app/test/test_rwlock.c
index b47150a86a..f2d1c8883c 100644
--- a/app/test/test_rwlock.c
+++ b/app/test/test_rwlock.c
@@ -13,7 +13,6 @@ 
 #include <rte_memory.h>
 #include <rte_per_lcore.h>
 #include <rte_launch.h>
-#include <rte_atomic.h>
 #include <rte_rwlock.h>
 #include <rte_eal.h>
 #include <rte_lcore.h>
@@ -36,7 +35,7 @@ 
 
 static rte_rwlock_t sl;
 static rte_rwlock_t sl_tab[RTE_MAX_LCORE];
-static rte_atomic32_t synchro;
+static uint32_t synchro;
 
 enum {
 	LC_TYPE_RDLOCK,
@@ -102,8 +101,7 @@  load_loop_fn(__rte_unused void *arg)
 
 	/* wait synchro for workers */
 	if (lcore != rte_get_main_lcore())
-		while (rte_atomic32_read(&synchro) == 0)
-			;
+		rte_wait_until_equal_32(&synchro, 1, __ATOMIC_RELAXED);
 
 	begin = rte_rdtsc_precise();
 	while (lcount < MAX_LOOP) {
@@ -136,12 +134,12 @@  test_rwlock_perf(void)
 	printf("\nRwlock Perf Test on %u cores...\n", rte_lcore_count());
 
 	/* clear synchro and start workers */
-	rte_atomic32_set(&synchro, 0);
+	__atomic_store_n(&synchro, 0, __ATOMIC_RELAXED);
 	if (rte_eal_mp_remote_launch(load_loop_fn, NULL, SKIP_MAIN) < 0)
 		return -1;
 
 	/* start synchro and launch test on main */
-	rte_atomic32_set(&synchro, 1);
+	__atomic_store_n(&synchro, 1, __ATOMIC_RELAXED);
 	load_loop_fn(NULL);
 
 	rte_eal_mp_wait_lcore();