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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 B62B6C4338F for ; Sun, 22 Aug 2021 22:00:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F1586120A for ; Sun, 22 Aug 2021 22:00:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233180AbhHVWBR (ORCPT ); Sun, 22 Aug 2021 18:01:17 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:50220 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231882AbhHVWBQ (ORCPT ); Sun, 22 Aug 2021 18:01:16 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id AEBA221B81; Sun, 22 Aug 2021 22:00:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1629669633; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ufHO4KwvSXwyG1ay4KSihhLFkSzwIIgYaiY6y/rU7A0=; b=E96615qLGX9Rcg49EsLlwFSJsJ9S361TrjcfCezKTro7a5egX87X/Cu1uWvzWtasmSU1sb tx6q0HBL5c8Wiix7P/1CPqej66QewdIU4bG9sv488boEOOgMWhje4L0SWfohHwZHYecJe8 N6s3i4R8t3qXA21M+Ukh8Q7eSXKEZ7U= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1629669633; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ufHO4KwvSXwyG1ay4KSihhLFkSzwIIgYaiY6y/rU7A0=; b=1LpN77HRhgwejRnWLdpa6HYG9+5G5f3dZzyxaxrfgALf3jdsLK1o59d+wDquq1E9nmO1Se yCKLOrCL3KZji/Bw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 9172513A9E; Sun, 22 Aug 2021 22:00:32 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id EM3iEwDJImFtbAAAMHmgww (envelope-from ); Sun, 22 Aug 2021 22:00:32 +0000 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit MIME-Version: 1.0 From: "NeilBrown" To: "Mike Javorski" Cc: "Chuck Lever III" , "Linux NFS Mailing List" Subject: Re: NFS server regression in kernel 5.13 (tested w/ 5.13.9) In-reply-to: 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>, Date: Mon, 23 Aug 2021 08:00:27 +1000 Message-id: <162966962721.9892.5962616727949224286@noble.neil.brown.name> Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org 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