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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C727C7EE2D for ; Tue, 23 May 2023 01:02:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235266AbjEWBCC (ORCPT ); Mon, 22 May 2023 21:02:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60362 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233828AbjEWBBg (ORCPT ); Mon, 22 May 2023 21:01:36 -0400 Received: from out28-38.mail.aliyun.com (out28-38.mail.aliyun.com [115.124.28.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFAABE78; Mon, 22 May 2023 17:59:37 -0700 (PDT) X-Alimail-AntiSpam: AC=CONTINUE;BC=0.1252176|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_enroll_verification|0.0240655-4.02396e-05-0.975894;FP=0|0|0|0|0|-1|-1|-1;HT=ay29a033018047187;MF=wangyugui@e16-tech.com;NM=1;PH=DS;RN=7;RT=7;SR=0;TI=SMTPD_---.T9RQ-uT_1684803569; Received: from 192.168.2.112(mailfrom:wangyugui@e16-tech.com fp:SMTPD_---.T9RQ-uT_1684803569) by smtp.aliyun-inc.com; Tue, 23 May 2023 08:59:30 +0800 Date: Tue, 23 May 2023 08:59:30 +0800 From: Wang Yugui To: cluster-devel@redhat.com Subject: gfs2 write bandwidth regression on 6.4-rc3 compareto 5.15.y Cc: linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, Dave Chinner , Christoph Hellwig , "Darrick J . Wong" , "Matthew Wilcox (Oracle)" Message-Id: <20230523085929.614A.409509F4@e16-tech.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.81.04 [en] Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Hi, gfs2 write bandwidth regression on 6.4-rc3 compare to 5.15.y. we added linux-xfs@ and linux-fsdevel@ because some related problem[1] and related patches[2]. we compared 6.4-rc3(rather than 6.1.y) to 5.15.y becasue some related patches[2] work only for 6.4 now. [1] https://lore.kernel.org/linux-xfs/20230508172406.1CF3.409509F4@e16-tech.com/ [2] https://lore.kernel.org/linux-xfs/20230520163603.1794256-1-willy@infradead.org/ test case: 1) PCIe3 SSD *4 with LVM 2) gfs2 lock_nolock gfs2 attr(T) GFS2_AF_ORLOV # chattr +T /mnt/test 3) fio fio --name=global --rw=write -bs=1024Ki -size=32Gi -runtime=30 -iodepth 1 -ioengine sync -zero_buffers=1 -direct=0 -end_fsync=1 -numjobs=1 \ -name write-bandwidth-1 -filename=/mnt/test/sub1/1.txt \ -name write-bandwidth-2 -filename=/mnt/test/sub2/1.txt \ -name write-bandwidth-3 -filename=/mnt/test/sub3/1.txt \ -name write-bandwidth-4 -filename=/mnt/test/sub4/1.txt 4) patches[2] are applied to 6.4-rc3. 5.15.y result fio WRITE: bw=5139MiB/s (5389MB/s), 6.4-rc3 result fio WRITE: bw=2599MiB/s (2725MB/s) Best Regards Wang Yugui (wangyugui@e16-tech.com) 2023/05/23