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{ "id": 51181, "url": "http://patchwork.dpdk.org/api/covers/51181/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/cover/1552569304-74817-1-git-send-email-joyce.kong@arm.com/", "project": { "id": 1, "url": "http://patchwork.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<1552569304-74817-1-git-send-email-joyce.kong@arm.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1552569304-74817-1-git-send-email-joyce.kong@arm.com", "date": "2019-03-14T13:15:01", "name": "[v3,0/3] rwlock: reimplement rwlock with atomic and add relevant perf test case", "submitter": { "id": 970, "url": "http://patchwork.dpdk.org/api/people/970/?format=api", "name": "Joyce Kong", "email": "joyce.kong@arm.com" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/cover/1552569304-74817-1-git-send-email-joyce.kong@arm.com/mbox/", "series": [ { "id": 3741, "url": "http://patchwork.dpdk.org/api/series/3741/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=3741", "date": "2019-03-14T13:15:01", "name": "rwlock: reimplement rwlock with atomic and add relevant perf test case", "version": 3, "mbox": "http://patchwork.dpdk.org/series/3741/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/covers/51181/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 586303572;\n\tThu, 14 Mar 2019 14:15:28 +0100 (CET)", "from foss.arm.com (foss.arm.com [217.140.101.70])\n\tby dpdk.org (Postfix) with ESMTP id DBD29324D\n\tfor <dev@dpdk.org>; Thu, 14 Mar 2019 14:15:26 +0100 (CET)", "from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249])\n\tby usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E89B080D;\n\tThu, 14 Mar 2019 06:15:25 -0700 (PDT)", "from net-arm-thunderx2.shanghai.arm.com\n\t(net-arm-thunderx2.shanghai.arm.com [10.169.40.121])\n\tby usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id\n\t3DFBE3F614; Thu, 14 Mar 2019 06:15:24 -0700 (PDT)" ], "From": "Joyce Kong <joyce.kong@arm.com>", "To": "dev@dpdk.org", "Cc": "nd@arm.com, jerinj@marvell.com, konstantin.ananyev@intel.com,\n\tchaozhu@linux.vnet.ibm.com, bruce.richardson@intel.com,\n\tthomas@monjalon.net, hemant.agrawal@nxp.com,\n\thonnappa.nagarahalli@arm.com, gavin.hu@arm.com", "Date": "Thu, 14 Mar 2019 21:15:01 +0800", "Message-Id": "<1552569304-74817-1-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 v3 0/3] rwlock: reimplement rwlock with atomic\n\tand add relevant perf test case", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "v3: Fix headline format error.\n\nv2: Rebase and modify the rwlock test case to address the comments in v1.\n\nv1: Reimplement rwlock with atomic builtins, and add a rwlock perf test\n on all available cores to benchmark the improvement.\n\n\tWe tested the patches on three arm64 platforms.\n\tThundeX2 gained 20% performance, Qualcomm gained 36% and\n\tthe 4-Cortex-A72 Marvell MACCHIATObin gained 19.6%.\n\t\n\tBelow is the detailed test result on ThunderX2:\n\n\t*** rwlock_autotest without atomic builtins ***\n\tRwlock Perf Test on 128 cores...\n\tCore [0] count = 281\n\tCore [1] count = 252\n\tCore [2] count = 290\n\tCore [3] count = 259\n\tCore [4] count = 287\n\t...\n\tCore [209] count = 3\n\tCore [210] count = 31\n\tCore [211] count = 120\n\tTotal count = 18537\n\n\t*** rwlock_autotest with atomic builtins ***\n\tRwlock Perf Test on 128 cores...\n\tCore [0] count = 346\n\tCore [1] count = 355\n\tCore [2] count = 259\n\tCore [3] count = 285\n\tCore [4] count = 320\n\t...\n\tCore [209] count = 2\n\tCore [210] count = 23\n\tCore [211] count = 63\n\tTotal count = 22194\n\nGavin Hu (1):\n rwlock: reimplement with atomic builtins\n\nJoyce Kong (2):\n test/rwlock: add perf test case on all available cores\n test/rwlock: amortize the cost of getting time\n\n app/test/test_rwlock.c | 77 ++++++++++++++++++++++\n lib/librte_eal/common/include/generic/rte_rwlock.h | 16 ++---\n 2 files changed, 85 insertions(+), 8 deletions(-)" }