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GET /api/patches/49838/?format=api
{ "id": 49838, "url": "http://patches.dpdk.org/api/patches/49838/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/1547557979-153169-1-git-send-email-joyce.kong@arm.com/", "project": { "id": 1, "url": "http://patches.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": "<1547557979-153169-1-git-send-email-joyce.kong@arm.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1547557979-153169-1-git-send-email-joyce.kong@arm.com", "date": "2019-01-15T13:12:56", "name": "[v2,0/3] reimplement rwlock and add relevant perf test case", "commit_ref": null, "pull_url": null, "state": null, "archived": false, "hash": null, "submitter": { "id": 970, "url": "http://patches.dpdk.org/api/people/970/?format=api", "name": "Joyce Kong", "email": "joyce.kong@arm.com" }, "delegate": null, "mbox": "http://patches.dpdk.org/project/dpdk/patch/1547557979-153169-1-git-send-email-joyce.kong@arm.com/mbox/", "series": [], "comments": "http://patches.dpdk.org/api/patches/49838/comments/", "check": "pending", "checks": "http://patches.dpdk.org/api/patches/49838/checks/", "tags": {}, "related": [], "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 D80655A6A;\n\tTue, 15 Jan 2019 14:13:10 +0100 (CET)", "from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70])\n\tby dpdk.org (Postfix) with ESMTP id 3C7235A44\n\tfor <dev@dpdk.org>; Tue, 15 Jan 2019 14:13:09 +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 7049CA78;\n\tTue, 15 Jan 2019 05:13:08 -0800 (PST)", "from net-arm-thunderx2.shanghai.arm.com\n\t(net-arm-thunderx2.shanghai.arm.com [10.169.40.106])\n\tby usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id\n\t1B8953F70D; Tue, 15 Jan 2019 05:13:06 -0800 (PST)" ], "From": "Joyce Kong <joyce.kong@arm.com>", "To": "dev@dpdk.org", "Cc": "thomas@monjalon.net, jerinj@marvell.com, hemant.agrawal@nxp.com,\n\tbruce.richardson@intel.com, chaozhu@linux.vnet.ibm.com,\n\thonnappa.nagarahalli@arm.com, nd@arm.com", "Date": "Tue, 15 Jan 2019 21:12:56 +0800", "Message-Id": "<1547557979-153169-1-git-send-email-joyce.kong@arm.com>", "X-Mailer": "git-send-email 2.7.4", "Subject": "[dpdk-dev] [PATCH v2 0/3] reimplement rwlock and add relevant perf\n\ttest 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": "v2:\n\tRebase 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 *** Rwlock 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 *** Rwlock 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\n test/rwlock: amortize the cost of getting time\n\n lib/librte_eal/common/include/generic/rte_rwlock.h | 16 ++---\n test/test/test_rwlock.c | 75 ++++++++++++++++++++++\n 2 files changed, 83 insertions(+), 8 deletions(-)", "diff": null, "prefixes": [ "v2", "0/3" ] }