[v2,3/8] test/rwlock: use GCC atomic builtins for lcores sync
Checks
Commit Message
Convert rte_atomic usages to GCC atomic builtins 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(-)
@@ -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();