[PATCH v2 02/12] test/ring_perf: use compiler atomic builtins for lcores sync
Joyce Kong
joyce.kong at arm.com
Tue Nov 16 10:41:55 CET 2021
Convert rte_atomic usages to compiler atomic built-ins
for lcores sync in ring_perf test cases.
Signed-off-by: Joyce Kong <joyce.kong at arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang at arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli at arm.com>
---
app/test/test_ring_perf.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/app/test/test_ring_perf.c b/app/test/test_ring_perf.c
index fd82e20412..2d8bb675a3 100644
--- a/app/test/test_ring_perf.c
+++ b/app/test/test_ring_perf.c
@@ -320,7 +320,7 @@ run_on_core_pair(struct lcore_pair *cores, struct rte_ring *r, const int esize)
return 0;
}
-static rte_atomic32_t synchro;
+static uint32_t synchro;
static uint64_t queue_count[RTE_MAX_LCORE];
#define TIME_MS 100
@@ -342,8 +342,7 @@ load_loop_fn_helper(struct thread_params *p, const int esize)
/* wait synchro for workers */
if (lcore != rte_get_main_lcore())
- while (rte_atomic32_read(&synchro) == 0)
- rte_pause();
+ rte_wait_until_equal_32(&synchro, 1, __ATOMIC_RELAXED);
begin = rte_get_timer_cycles();
while (time_diff < hz * TIME_MS / 1000) {
@@ -398,12 +397,12 @@ run_on_all_cores(struct rte_ring *r, const int esize)
param.r = r;
/* clear synchro and start workers */
- rte_atomic32_set(&synchro, 0);
+ __atomic_store_n(&synchro, 0, __ATOMIC_RELAXED);
if (rte_eal_mp_remote_launch(lcore_f, ¶m, SKIP_MAIN) < 0)
return -1;
/* start synchro and launch test on main */
- rte_atomic32_set(&synchro, 1);
+ __atomic_store_n(&synchro, 1, __ATOMIC_RELAXED);
lcore_f(¶m);
rte_eal_mp_wait_lcore();
--
2.25.1
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