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 5C884A0C41; Mon, 2 Aug 2021 12:20:09 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 4C69E41136; Mon, 2 Aug 2021 12:20:09 +0200 (CEST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mails.dpdk.org (Postfix) with ESMTP id A051B40140 for ; Mon, 2 Aug 2021 12:20:08 +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 2A0A5D6E; Mon, 2 Aug 2021 03:20:08 -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 700043F70D; Mon, 2 Aug 2021 03:20:01 -0700 (PDT) From: Joyce Kong To: thomas@monjalon.net, david.marchand@redhat.com, honnappa.nagarahalli@arm.com, ruifeng.wang@arm.com, konstantin.ananyev@intel.com, rsanford@akamai.com, erik.g.carrillo@intel.com, olivier.matz@6wind.com, yipeng1.wang@intel.com, sameh.gobriel@intel.com, bruce.richardson@intel.com, vladimir.medvedkin@intel.com, anatoly.burakov@intel.com, andrew.rybchenko@oktetlabs.ru, jerinj@marvell.com, declan.doherty@intel.com, ciara.power@intel.com, xiaoyun.li@intel.com, nicolas.chautru@intel.com, maryam.tahhan@intel.com, reshma.pattan@intel.com, cristian.dumitrescu@intel.com Cc: dev@dpdk.org, nd@arm.com Date: Mon, 2 Aug 2021 05:18:37 -0500 Message-Id: <20210802101847.3462-3-joyce.kong@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210802101847.3462-1-joyce.kong@arm.com> References: <20210802101847.3462-1-joyce.kong@arm.com> Subject: [dpdk-dev] [PATCH v1 02/12] test/ring_perf: use compiler atomic builtins 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 ring_perf test cases. Signed-off-by: Joyce Kong Reviewed-by: Ruifeng Wang --- 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(); -- 2.17.1