Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 15 Oct 2002 11:28:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 15 Oct 2002 11:28:58 -0400 Received: from mailrelay1.lanl.gov ([128.165.4.101]:23745 "EHLO mailrelay1.lanl.gov") by vger.kernel.org with ESMTP id ; Tue, 15 Oct 2002 11:28:55 -0400 Subject: Problem with jfs and dbench 80 (ext3, reiserfs, xfs are OK) From: Steven Cole To: Linux Kernel Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Evolution/1.0.2-5mdk Date: 15 Oct 2002 09:29:54 -0600 Message-Id: <1034695794.13083.27.camel@spc9.esa.lanl.gov> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2180 Lines: 56 I have run into problems running dbench with 80 clients on a jfs partition. Using 2.5.41-bk2 over the weekend, I ran dbench with up to 128 clients on a single PIII, IDE machine running X. Dbench runs on ext3, reiserfs, and xfs partitions were completely successful. I was able to run dbench with 1,2,3,4,6,10,12,16,20,24,28,32,36,40,44,48,52,56,64,80,96,112 and 128 clients. However on the jfs partition, the maxiumum dbench run was 64 clients. At 80 clients, the dbench output stopped for many hours. This was repeatable. Twice, the increasing client dbench script stopped at 80. Here is a snippet from running ps with these options: ps -ewo user,pid,priority,%cpu,stat,command,wchan root 11058 15 0.0 DW [pdflush] lmGroupCommit steven 11060 16 0.0 S time -v ./dbench wait4 steven 11061 15 0.0 S ./dbench 80 wait4 steven 11062 15 0.0 D ./dbench 80 TXN_SLEEP_DROP_LOCK steven 11065 15 0.0 D ./dbench 80 TXN_SLEEP_DROP_LOCK steven 11068 15 0.0 D ./dbench 80 lmGroupCommit This was with dbench running on a jfs partition (/dev/hda11). Filesystem Type Size Used Avail Use% Mounted on /dev/hda1 ext3 236M 56M 168M 25% / /dev/hda9 ext3 20G 7.3G 13G 38% /home /dev/hda11 jfs 3.9G 478M 3.5G 13% /share_jfs /dev/hda10 reiserfs 4.0G 37M 3.9G 1% /share_reiser /dev/hda12 xfs 4.8G 253M 4.6G 6% /share_xfs /dev/hda8 ext3 236M 4.7M 219M 3% /tmp /dev/hda6 ext3 2.9G 1.3G 1.5G 47% /usr /dev/hda7 ext3 479M 60M 395M 14% /var I now find that if I try to ls the dbench directory on /share_jfs, the ls command hangs. I was able to ls directories above /share_jfs/steven/dbench earlier but now any ls command on /share_jfs hangs. If I know the filename, I can cat the file, for example my log of the dbench run, so reading of individual files is still working. Steven - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/