From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id BB49EA0C43; Tue, 20 Jul 2021 05:52:17 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id D1266410E7; Tue, 20 Jul 2021 05:52:11 +0200 (CEST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mails.dpdk.org (Postfix) with ESMTP id 866C141124 for ; Tue, 20 Jul 2021 05:52:10 +0200 (CEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1BA8A1FB; Mon, 19 Jul 2021 20:52:10 -0700 (PDT) Received: from net-arm-n1sdp.shanghai.arm.com (net-arm-n1sdp.shanghai.arm.com [10.169.208.222]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id B83193F694; Mon, 19 Jul 2021 20:52:06 -0700 (PDT) From: Joyce Kong To: thomas@monjalon.net, david.marchand@redhat.com, roretzla@linux.microsoft.com, stephen@networkplumber.org, olivier.matz@6wind.com, andrew.rybchenko@oktetlabs.ru, harry.van.haaren@intel.com, honnappa.nagarahalli@arm.com, ruifeng.wang@arm.com Cc: dev@dpdk.org, nd@arm.com Date: Mon, 19 Jul 2021 22:51:20 -0500 Message-Id: <20210720035125.14214-4-joyce.kong@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210720035125.14214-1-joyce.kong@arm.com> References: <20210616025459.22717-1-joyce.kong@arm.com> <20210720035125.14214-1-joyce.kong@arm.com> Subject: [dpdk-dev] [PATCH v3 3/8] test/rwlock: use compiler atomics for lcores sync X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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(); -- 2.17.1