From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755792Ab1EGQJt (ORCPT ); Sat, 7 May 2011 12:09:49 -0400 Received: from lucidpixels.com ([75.144.35.66]:37444 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755709Ab1EGQJr (ORCPT ); Sat, 7 May 2011 12:09:47 -0400 Date: Sat, 7 May 2011 12:09:46 -0400 (EDT) From: Justin Piszcz To: xfs@oss.sgi.com cc: linux-kernel@vger.kernel.org Subject: 2.6.38.4: xfs speed problem? Message-ID: User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Using 2.6.38.4 on two hosts: Host 1: $ /usr/bin/time find geocities.data 1> /dev/null 80.92user 417.93system 2:19:07elapsed 5%CPU (0avgtext+0avgdata 105520maxresident)k 0inputs+0outputs (0major+73373minor)pagefaults 0swaps # xfs_db -c frag -f /dev/sda1 actual 40203982, ideal 40088075, fragmentation factor 0.29% meta-data=/dev/sda1 isize=256 agcount=44, agsize=268435455 blks = sectsz=512 attr=2 data = bsize=4096 blocks=11718704640, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=521728, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 -- Host 2: $ /usr/bin/time find geocities.data 1>/dev/null 54.60user 337.20system 48:42.71elapsed 13%CPU (0avgtext+0avgdata 105632maxresident)k 0inputs+0outputs (1major+72981minor)pagefaults 0swaps # xfs_db -c frag -f /dev/sdb1 actual 37998306, ideal 37939331, fragmentation factor 0.16% meta-data=/dev/sdb1 isize=256 agcount=10, agsize=268435455 blks = sectsz=512 attr=2 data = bsize=4096 blocks=2441379328, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=521728, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 -- Host 1: RAID-6 (7200 RPM Drives, 18+1 hot spare) Host 2: RAID-6 (7200 RPM Drives, 12) Each system uses a 3ware 9750-24i4e controller, same settings. Any thoughts why one is > 2x faster than the other? Justin. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id p47G67sQ249337 for ; Sat, 7 May 2011 11:06:07 -0500 Received: from lucidpixels.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 0807A164BEF2 for ; Sat, 7 May 2011 09:09:46 -0700 (PDT) Received: from lucidpixels.com (lucidpixels.com [75.144.35.66]) by cuda.sgi.com with ESMTP id O3DyKQZFKjZvX0tM for ; Sat, 07 May 2011 09:09:46 -0700 (PDT) Date: Sat, 7 May 2011 12:09:46 -0400 (EDT) From: Justin Piszcz Subject: 2.6.38.4: xfs speed problem? Message-ID: MIME-Version: 1.0 List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Cc: linux-kernel@vger.kernel.org Hello, Using 2.6.38.4 on two hosts: Host 1: $ /usr/bin/time find geocities.data 1> /dev/null 80.92user 417.93system 2:19:07elapsed 5%CPU (0avgtext+0avgdata 105520maxresident)k 0inputs+0outputs (0major+73373minor)pagefaults 0swaps # xfs_db -c frag -f /dev/sda1 actual 40203982, ideal 40088075, fragmentation factor 0.29% meta-data=/dev/sda1 isize=256 agcount=44, agsize=268435455 blks = sectsz=512 attr=2 data = bsize=4096 blocks=11718704640, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=521728, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 -- Host 2: $ /usr/bin/time find geocities.data 1>/dev/null 54.60user 337.20system 48:42.71elapsed 13%CPU (0avgtext+0avgdata 105632maxresident)k 0inputs+0outputs (1major+72981minor)pagefaults 0swaps # xfs_db -c frag -f /dev/sdb1 actual 37998306, ideal 37939331, fragmentation factor 0.16% meta-data=/dev/sdb1 isize=256 agcount=10, agsize=268435455 blks = sectsz=512 attr=2 data = bsize=4096 blocks=2441379328, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=521728, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 -- Host 1: RAID-6 (7200 RPM Drives, 18+1 hot spare) Host 2: RAID-6 (7200 RPM Drives, 12) Each system uses a 3ware 9750-24i4e controller, same settings. Any thoughts why one is > 2x faster than the other? Justin. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs