From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id C5DC6A05D3 for ; Mon, 25 Mar 2019 10:15:11 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E187A2BFA; Mon, 25 Mar 2019 10:15:10 +0100 (CET) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by dpdk.org (Postfix) with ESMTP id 16AC82BF7 for ; Mon, 25 Mar 2019 10:15:10 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3750D15AB; Mon, 25 Mar 2019 02:15:09 -0700 (PDT) Received: from net-arm-thunderx2.shanghai.arm.com (net-arm-thunderx2.shanghai.arm.com [10.169.40.112]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 78FA13F614; Mon, 25 Mar 2019 02:15:07 -0700 (PDT) From: Joyce Kong To: dev@dpdk.org Cc: nd@arm.com, jerinj@marvell.com, konstantin.ananyev@intel.com, chaozhu@linux.vnet.ibm.com, bruce.richardson@intel.com, thomas@monjalon.net, hemant.agrawal@nxp.com, honnappa.nagarahalli@arm.com, gavin.hu@arm.com Date: Mon, 25 Mar 2019 17:14:56 +0800 Message-Id: <1553505299-34459-1-git-send-email-joyce.kong@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1544672265-219262-2-git-send-email-joyce.kong@arm.com> References: <1544672265-219262-2-git-send-email-joyce.kong@arm.com> Subject: [dpdk-dev] [PATCH v5 0/3] rwlock: reimplement rwlock with atomic and add relevant perf test case X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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" Content-Type: text/plain; charset="UTF-8" Message-ID: <20190325091456.jHrvAOBzFCKmm8__GsgytUyF40lM_aKcI3z5K2IJ5zw@z> v5: Minor format change. v4: Change _try_ functions to use __atomic too (for consistency)(Suggested by Ananyev, Konstantin). v3: Fix headline format error. v2: Rebase and modify the rwlock test case to address the comments in v1. v1: Reimplement rwlock with atomic builtins, and add a rwlock perf test on all available cores to benchmark the improvement. We tested the patches on three arm64 platforms. ThundeX2 gained 20% performance, Qualcomm gained 36% and the 4-Cortex-A72 Marvell MACCHIATObin gained 19.6%. Below is the detailed test result on ThunderX2: *** rwlock_autotest without atomic builtins *** Rwlock Perf Test on 128 cores... Core [0] count = 281 Core [1] count = 252 Core [2] count = 290 Core [3] count = 259 Core [4] count = 287 ... Core [209] count = 3 Core [210] count = 31 Core [211] count = 120 Total count = 18537 *** rwlock_autotest with atomic builtins *** Rwlock Perf Test on 128 cores... Core [0] count = 346 Core [1] count = 355 Core [2] count = 259 Core [3] count = 285 Core [4] count = 320 ... Core [209] count = 2 Core [210] count = 23 Core [211] count = 63 Total count = 22194 Gavin Hu (1): rwlock: reimplement with atomic builtins Joyce Kong (2): test/rwlock: add perf test case on all available cores test/rwlock: amortize the cost of getting time app/test/test_rwlock.c | 77 ++++++++++++++++++++++ lib/librte_eal/common/include/generic/rte_rwlock.h | 29 ++++---- 2 files changed, 92 insertions(+), 14 deletions(-) -- 2.7.4