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{ "id": 808532, "url": "http://patchwork.ozlabs.org/api/covers/808532/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/cover/20170901062713.1842249-1-kafai@fb.com/", "project": { "id": 7, "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api", "name": "Linux network development", "link_name": "netdev", "list_id": "netdev.vger.kernel.org", "list_email": "netdev@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20170901062713.1842249-1-kafai@fb.com>", "list_archive_url": null, "date": "2017-09-01T06:27:10", "name": "[net-next,0/3] bpf: Improve LRU map lookup performance", "submitter": { "id": 64907, "url": "http://patchwork.ozlabs.org/api/people/64907/?format=api", "name": "Martin KaFai Lau", "email": "kafai@fb.com" }, "mbox": "http://patchwork.ozlabs.org/project/netdev/cover/20170901062713.1842249-1-kafai@fb.com/mbox/", "series": [ { "id": 953, "url": "http://patchwork.ozlabs.org/api/series/953/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=953", "date": "2017-09-01T06:27:10", "name": "bpf: Improve LRU map lookup performance", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/953/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/808532/comments/", "headers": { "Return-Path": "<netdev-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming@ozlabs.org", "Delivered-To": "patchwork-incoming@ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=fb.com header.i=@fb.com header.b=\"j4cNWajB\";\n\tdkim-atps=neutral" ], "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xk8RV5rsTz9s72\n\tfor <patchwork-incoming@ozlabs.org>;\n\tFri, 1 Sep 2017 16:27:18 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751349AbdIAG1Q (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tFri, 1 Sep 2017 02:27:16 -0400", "from mx0a-00082601.pphosted.com ([67.231.145.42]:36472 \"EHLO\n\tmx0a-00082601.pphosted.com\" rhost-flags-OK-OK-OK-OK)\n\tby vger.kernel.org with ESMTP id S1751000AbdIAG1P (ORCPT\n\t<rfc822;netdev@vger.kernel.org>); Fri, 1 Sep 2017 02:27:15 -0400", "from pps.filterd (m0044010.ppops.net [127.0.0.1])\n\tby mx0a-00082601.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv816OnLN009163\n\tfor <netdev@vger.kernel.org>; Thu, 31 Aug 2017 23:27:14 -0700", "from mail.thefacebook.com ([199.201.64.23])\n\tby mx0a-00082601.pphosted.com with ESMTP id 2cq180r9r6-2\n\t(version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT)\n\tfor <netdev@vger.kernel.org>; Thu, 31 Aug 2017 23:27:14 -0700", "from mx-out.facebook.com (192.168.52.123) by\n\tPRN-CHUB09.TheFacebook.com (192.168.16.19) with Microsoft SMTP Server\n\tid 14.3.319.2; Thu, 31 Aug 2017 23:27:14 -0700", "by devbig738.prn1.facebook.com (Postfix, from userid 6611) id\n\t9CD8445005AA; Thu, 31 Aug 2017 23:27:13 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com;\n\th=from : to : cc : subject\n\t: date : message-id : mime-version : content-type; s=facebook;\n\tbh=KrNmfJ0WaSQ0TxqVQzNFg2YelHCGCigUc2lN9mM9N+4=;\n\tb=j4cNWajBdkggOM2rOeLb4mNilbjvWECaHnl4vnS0NlIe/GGyDZCzoGWjGXiIBcC/4568\n\tBSumgVdwasYQKm4leUOsSEIzCHR9Q/M/LIp1lRIjIwlsfc7Wp1TN4hSe24w4dXVQpX6K\n\t/OqNf/n4estdOWfzivKl0DRmM5sjMnyZb4I= ", "X-ThriftRelayHost": "devbig738.prn1.facebook.com", "Smtp-Origin-Hostprefix": "devbig", "From": "Martin KaFai Lau <kafai@fb.com>", "Smtp-Origin-Hostname": "devbig738.prn1.facebook.com", "To": "<netdev@vger.kernel.org>", "CC": "Alexei Starovoitov <ast@fb.com>,\n\tDaniel Borkmann <daniel@iogearbox.net>, <kernel-team@fb.com>", "Smtp-Origin-Cluster": "prn1c29", "Subject": "[PATCH net-next 0/3] bpf: Improve LRU map lookup performance", "Date": "Thu, 31 Aug 2017 23:27:10 -0700", "Message-ID": "<20170901062713.1842249-1-kafai@fb.com>", "X-Mailer": "git-send-email 2.9.5", "X-FB-Internal": [ "Safe", "Safe" ], "MIME-Version": "1.0", "Content-Type": "text/plain", "X-Proofpoint-Spam-Reason": "safe", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-01_02:, , signatures=0", "Sender": "netdev-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<netdev.vger.kernel.org>", "X-Mailing-List": "netdev@vger.kernel.org" }, "content": "This patchset improves the lookup performance of the LRU map.\nPlease see individual patch for details.\n\nMartin KaFai Lau (3):\n bpf: Add lru_hash_lookup performance test\n bpf: Inline LRU map lookup\n bpf: Only set node->ref = 1 if it has not been set\n\n kernel/bpf/bpf_lru_list.h | 3 +-\n kernel/bpf/hashtab.c | 24 +++++++++++++\n samples/bpf/map_perf_test_kern.c | 44 +++++++++++++++++++----\n samples/bpf/map_perf_test_user.c | 77 ++++++++++++++++++++++++++++++++++++++--\n 4 files changed, 138 insertions(+), 10 deletions(-)" }