From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F0EEC433F5 for ; Thu, 30 Sep 2021 01:03:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 56B3C61381 for ; Thu, 30 Sep 2021 01:03:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347555AbhI3BFU (ORCPT ); Wed, 29 Sep 2021 21:05:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346422AbhI3BFT (ORCPT ); Wed, 29 Sep 2021 21:05:19 -0400 Received: from mail-pg1-x52d.google.com (mail-pg1-x52d.google.com [IPv6:2607:f8b0:4864:20::52d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BAB70C06161C for ; Wed, 29 Sep 2021 18:03:37 -0700 (PDT) Received: by mail-pg1-x52d.google.com with SMTP id n18so4504061pgm.12 for ; Wed, 29 Sep 2021 18:03:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=1hGq7vt7VRevMqO0uKUiYFyXj3GA36h2fkEW5YfidtQ=; b=A3B6QX7APL0CfErEDvqlv9mUxlygwIdnMC4Pr7ppUKwTJE4zgTThiTzhIoCA7OjheS BXS5/S4085a7vQA89tki+/D/2/Iwg19pagCvImyYT7cFIIYfAOgpbl64fWOTsLyLSKWw 4JRUE/XKR/yHHUVAJJSbV4iQ1zkro5bTvFk1tW4aPKXksu7On7ljUcJkMhkzUOfeCVih SnRmFQJ2gGyyz1yu5fQJ1ikxVUwNnha9vSVv0tHM2vcX7M5xRw1ZUBy35qc1XonpGUqJ irWgtB3/WB3YgKs60POyCDJhwRrHkJ7Pa05nLvFBDyTi1atpj6o+qV/aEMNr0Y6qTYHt 3n5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=1hGq7vt7VRevMqO0uKUiYFyXj3GA36h2fkEW5YfidtQ=; b=gynuG19XGVyLnfRF2C6U8INknI7ZwDMQ3SfqeYyGamHZy/Gb9XjzfRoogKKCPWLm/x Ukzq5ZHsFbouNTqiY23fD5BJhBWYPoZqoWlhg1OjrIdeWkWjppo+RIVVTxCztUvtp9IO 3+K12ujw2QGGPb0PfQDczCEq16kiAoOgfHuE+jbVi6ABnHMeuW5ZbMvLTxYiRMxSATst FDcPzH2OkmNZDUAjP7OQujRnAT+6Fji/9c4w5P/iPbamgVGJ4DdnBml78jwQEUiQmIVq SSOiP3z3KiLlRTMMP/FFNjnqz/kA+0mPNHxvsyFSBC5bfdZmf7MxLbvs2pWzKyjNO2Up rctQ== X-Gm-Message-State: AOAM532dMtU75qhPMYoXM3R+MfyKvM11v0dkzZHGl7A8mreNmUpbxs3d P2plAhyI8MXjbJyDNiK92IE= X-Google-Smtp-Source: ABdhPJyuLAyirSlR69giAnFTXa4Hbv8b9dxtTCk5mRHNyu1m5ErtuZYKhprK2fx11WTxTuzOIdg5jQ== X-Received: by 2002:a63:d2:: with SMTP id 201mr2490034pga.400.1632963817196; Wed, 29 Sep 2021 18:03:37 -0700 (PDT) Received: from edumazet1.svl.corp.google.com ([2620:15c:2c4:201:8858:a0b7:dcc9:9a3b]) by smtp.gmail.com with ESMTPSA id p17sm711695pju.34.2021.09.29.18.03.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Sep 2021 18:03:36 -0700 (PDT) From: Eric Dumazet To: "David S . Miller" , Jakub Kicinski Cc: netdev , Eric Dumazet , Eric Dumazet , Mat Martineau , Matthieu Baerts Subject: [PATCH net-next 0/2] net: snmp: minor optimizations Date: Wed, 29 Sep 2021 18:03:31 -0700 Message-Id: <20210930010333.2625706-1-eric.dumazet@gmail.com> X-Mailer: git-send-email 2.33.0.800.g4c38ced690-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Eric Dumazet Fetching many SNMP counters on hosts with large number of cpus takes a lot of time. mptcp still uses the old non-batched fashion which is not cache friendly. Eric Dumazet (2): net: snmp: inline snmp_get_cpu_field() mptcp: use batch snmp operations in mptcp_seq_show() include/net/ip.h | 6 +++++- net/ipv4/af_inet.c | 6 ------ net/mptcp/mib.c | 17 +++++++---------- 3 files changed, 12 insertions(+), 17 deletions(-) -- 2.33.0.800.g4c38ced690-goog