From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q47DvgC6059563 for ; Mon, 7 May 2012 08:57:43 -0500 Received: from mail.profihost.ag (mail.profihost.ag [85.158.179.208]) by cuda.sgi.com with ESMTP id EjtnT79cBBu9QrzJ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 07 May 2012 06:57:40 -0700 (PDT) Message-ID: <4FA7D4D1.6070609@profihost.ag> Date: Mon, 07 May 2012 15:57:37 +0200 From: Stefan Priebe - Profihost AG MIME-Version: 1.0 Subject: Re: suddenly slow writes on XFS Filesystem References: <4FA63DDA.9070707@profihost.ag> <20120507013456.GW5091@dastard> <4FA76E11.1070708@profihost.ag> (sfid-20120507_095413_656560_122EB192) <201205071031.38856.Martin@lichtvoll.de> In-Reply-To: <201205071031.38856.Martin@lichtvoll.de> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Martin Steigerwald Cc: stan@hardwarefreak.com, xfs@oss.sgi.com Am 07.05.2012 10:31, schrieb Martin Steigerwald: > Am Montag, 7. Mai 2012 schrieb Stefan Priebe - Profihost AG: > Did you verify that at the time you perceive slowness the servers you > backup can deliver data fast enough? Yes. It works fine to another partition. > I would like to now, whether there are really processes waiting for I/O > during rsync workload. > > Can you try vmstat 5 and > while true; do ps aux | grep " D" | grep -v grep ; sleep 1; done Here it is: # vmstat 5 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 1 0 396688 48 7728136 0 0 229 374 22 32 1 12 85 2 2 0 0 421744 48 7717348 0 0 3722 1169 9015 8389 1 2 95 2 0 1 0 405780 48 7751904 0 0 8937 207 10780 9290 2 2 88 7 0 0 0 486928 48 7733300 0 0 2526 1277 8275 7791 1 2 96 1 0 0 0 416692 48 7778164 0 0 5046 43750 8548 8141 1 2 95 2 0 0 0 444968 48 7777792 0 0 8021 1709 9315 8573 2 2 94 2 2 0 0 357924 48 7946532 0 0 48181 1031 17646 12684 10 4 87 0 1 0 0 348696 48 8137200 0 0 74366 1056 24362 16775 15 5 81 0 1 0 0 391552 48 8279000 0 0 54693 1242 19224 13957 11 4 85 0 # while true; do ps aux | grep " D" | grep -v grep ; sleep 1; done root 12493 2.0 0.2 101780 48392 ? D 15:35 0:24 rsync --daemon root 13581 3.5 0.1 76832 20828 ? D 15:50 0:10 rsync --daemon root 12493 2.0 0.2 101268 48508 ? D 15:35 0:24 rsync --daemon root 12494 3.9 0.2 128220 44328 ? D 15:35 0:47 rsync --daemon root 12493 2.0 0.2 101268 48508 ? D 15:35 0:24 rsync --daemon root 13581 3.5 0.1 76832 20828 ? D 15:50 0:10 rsync --daemon root 12493 2.0 0.2 101268 48508 ? D 15:35 0:24 rsync --daemon root 13581 3.5 0.1 76832 20828 ? D 15:50 0:10 rsync --daemon root 12493 2.0 0.2 86420 48120 ? D 15:35 0:25 rsync --daemon root 12493 2.0 0.2 86420 48120 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 21720 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86420 48120 ? D 15:35 0:25 rsync --daemon root 12493 2.0 0.2 86420 48120 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 21720 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86420 48120 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 21980 ? D 15:50 0:11 rsync --daemon root 13582 1.7 0.0 74308 13280 ? D 15:50 0:05 rsync --daemon root 12493 2.0 0.2 87956 48212 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 21980 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86420 48156 ? D 15:35 0:25 rsync --daemon root 12493 2.0 0.2 86420 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22244 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22244 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22244 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22244 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22244 ? D 15:50 0:11 rsync --daemon root 13581 3.5 0.1 76832 22508 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22508 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22508 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22772 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22772 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22772 ? D 15:50 0:11 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22772 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.5 0.1 76832 22772 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 3378 0.1 0.0 0 0 ? D 13:59 0:09 [flush-8:16] root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon root 12493 2.0 0.2 86676 48180 ? D 15:35 0:25 rsync --daemon root 13581 3.4 0.1 76832 23036 ? D 15:50 0:12 rsync --daemon Stefan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs