From fb2a9bd26628a83ee39583284c2536f2183ec7fd Mon Sep 17 00:00:00 2001 From: Joyce Kong Date: Mon, 19 Jul 2021 22:51:20 -0500 Subject: [PATCH] test/rwlock: use compiler atomics for lcores sync Convert rte_atomic usages to compiler atomic built-ins for lcores sync in rwlock testcases. Signed-off-by: Joyce Kong Reviewed-by: Ruifeng Wang Acked-by: Stephen Hemminger --- app/test/test_rwlock.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) 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 #include #include -#include #include #include #include @@ -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(); -- 2.20.1