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 X-Spam-Level: X-Spam-Status: No, score=-2.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 481FCC432BE for ; Thu, 26 Aug 2021 19:34:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2A04A61037 for ; Thu, 26 Aug 2021 19:34:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243361AbhHZTfa (ORCPT ); Thu, 26 Aug 2021 15:35:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46170 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230008AbhHZTf3 (ORCPT ); Thu, 26 Aug 2021 15:35:29 -0400 Received: from mail-pg1-x52c.google.com (mail-pg1-x52c.google.com [IPv6:2607:f8b0:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 149FEC061757 for ; Thu, 26 Aug 2021 12:34:42 -0700 (PDT) Received: by mail-pg1-x52c.google.com with SMTP id 17so3935251pgp.4 for ; Thu, 26 Aug 2021 12:34:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=oMrAHFwTOOxPSr7liVCdsJYpe8w0r6TSIQ3hmL51Bv0=; b=NvlM36PKZHuLE9g25zMfCQ78ovLs7eaa/xEK3vjIiOUmKw5RKHs67tZdfPlNveyYxz FCstlz1z7Lj8NORlcnotT+2vfVvcSpjRbwN77h4SMG3+pblAcF6pb5ZdkpwzEZsz1tzj DazL6pgcdJztjzzDR28aTEVCZZIy0ntDoxroDO+Ark5URoPZrGxx1K6u5hP50ZutjPHs 5TW8MzJKJCOfLsUFOzKcqtaY9SnUuqJglgTTPJlHhL+ecvbpcPzl3vJ+1vYkWILtK7pm mhLr/Oe859oRVgY2Ac2fnqSMaJPezVgT/Kb6eV8kxcWs6nIT44HbpQ5ToojO4CgSDt5Z MbgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=oMrAHFwTOOxPSr7liVCdsJYpe8w0r6TSIQ3hmL51Bv0=; b=EIPnqZIHQJOcmTcOogoXd2cNYCjWcnAHT75OAVzKfkVAJiyUN62kmYEOLhoVpYrtFq u+iTnB26OqW3pJFjqDlr32CTeb7+6uwpNIjXAWxrQj2vaipLoT2cUSi7NVg8HWMZIc5F Gv9niGPdGDGGeKWI+d6bT/qwqsyOwA4OuBxAAMbfdzH360/tuAdt1sh0SwGVpPw0bBSF /s9mdJbPhiidEb3J81I1LhwldTIpz6t96daQ0FrzWS+qdW3IjA1V4Id+lLGQhZaAY1Po VFxyFB3DA4BYvrFeCtHQO+Obpl0BddXJmqePdRxFoYYtbLZFWMqWrBnbRPG5WLUyDPF3 XUOg== X-Gm-Message-State: AOAM5315vCdrZskDtfHlAMZ6z8CAqAwUD4QiMQKOOEiAVnfCWy1WXr1z SQtnRTmQSmygfENOuh84rui6FVwxrikU38DQHSY= X-Google-Smtp-Source: ABdhPJxxCxfTZFX6y4TQs9zt2r8i0XXYuakXz224Mlaja9kELqF+w9DosTRREONbF2wZ3cUIUVKlkBVf0ptdB/zYdzw= X-Received: by 2002:a63:4f03:: with SMTP id d3mr4641875pgb.217.1630006481478; Thu, 26 Aug 2021 12:34:41 -0700 (PDT) MIME-Version: 1.0 References: <162846730406.22632.14734595494457390936@noble.neil.brown.name> <162855893202.12431.3423894387218130632@noble.neil.brown.name> <162882238416.1695.4958036322575947783@noble.neil.brown.name> <162907681945.1695.10796003189432247877@noble.neil.brown.name> <87777C39-BDDA-4E1E-83FA-5B46918A66D3@oracle.com> <162915491276.9892.7049267765583701172@noble.neil.brown.name> <162941948235.9892.6790956894845282568@noble.neil.brown.name> <162960371884.9892.13803244995043191094@noble.neil.brown.name> <162966962721.9892.5962616727949224286@noble.neil.brown.name> In-Reply-To: <162966962721.9892.5962616727949224286@noble.neil.brown.name> From: Mike Javorski Date: Thu, 26 Aug 2021 12:34:29 -0700 Message-ID: Subject: Re: NFS server regression in kernel 5.13 (tested w/ 5.13.9) To: NeilBrown Cc: Chuck Lever III , Linux NFS Mailing List Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org I finally had the chance to test with the offloading disabled on the server. Unfortunately, the issues remain, may even be more frequent, but I can't rule out confirmation bias on that one. Not sure where to go from here. - mike On Sun, Aug 22, 2021 at 3:00 PM NeilBrown wrote: > > On Sun, 22 Aug 2021, Mike Javorski wrote: > > 5.12.15-arch1: > > =============== > > 14723 137 0.00921938 > > > > 5.13.12-arch1: (no freezes) > > =============== > > 15333 206 0.013257 > > > > 5.13.12-arch1: (with freezes) > > =============== > > 9230 299 0.0313779 > > > > So a decent bump w/ 5.13, and even more with the freezes. > > Thanks. 9->13 isn't as much as I was hoping for, but it might still be > significant. > > > This machine is an older Opteron server w/ nforce networking. Not sure > > how much offloading it actually does. > > The tcpdump showed the server sending very large packets, which means > that it is at least doing TCP segmentation offload and checksum offload. > Those are very common these days. > > Thanks, > NeilBrown