Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 22 Jun 2002 04:10:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 22 Jun 2002 04:10:54 -0400 Received: from mail.zianet.com ([204.134.124.201]:9415 "HELO zianet.com") by vger.kernel.org with SMTP id ; Sat, 22 Jun 2002 04:10:53 -0400 Message-ID: <3D143104.8030506@zianet.com> Date: Sat, 22 Jun 2002 02:10:44 -0600 From: kwijibo@zianet.com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020529 X-Accept-Language: en-us, en MIME-Version: 1.0 To: kwijibo@zianet.com CC: Duc Vianney , Andrew Morton , mgross , "Griffiths, Richard A" , Jens Axboe , Linux Kernel Mailing List , lse-tech@lists.sourceforge.net Subject: Re: [Lse-tech] Re: ext3 performance bottleneck as the number of spindles gets large References: <3D13A2B4.236E55DD@us.ibm.com> <3D13C2A8.6020007@zianet.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4042 Lines: 110 If you tried the link earlier and it didn't work I'm sorry. Had a mental brain fart with the web server. It should work now. Steven kwijibo@zianet.com wrote: > This web site may be of interest for this discussion: > http://labs.zianet.com. I have benchmarks using NFS > with ext3 there. It also compares ext3 with ReiserFS. > The page is not quite complete but it has the > benchmarks up. > > Steven > > Duc Vianney wrote: > >> Andrew Morton wrote: >> >> >>> If you have time, please test ext2 and/or reiserfs and/or ext3 >>> in writeback mode. >>> >> >> I ran IOzone on ext2fs, ext3fs, JFS, and Reiserfs on an SMP 4-way >> 500MHz, 2.5GB RAM, two 9.1GB SCSI drives. The test partition is 1GB, >> test file size is 128MB, test block size is 4KB, and IO threads varies >> from 1 to 6. When comparing with other file system for this test >> environment, the results on a 2.5.19 SMP kernel show ext3fs is having >> performance problem with Writes and in particularly, with Random Write. >> I think the BKL contention patch would help ext3fs, but I need to verify >> it first. >> >> The following data are throughput in MB/sec obtained from IOzone >> benchmark running on all file systems installed with default options. >> >> >> Kernels 2519smp4 2519smp4 2519smp4 2519smp4 >> No of threads=1 ext2-1t jfs-1t ext3-1t reiserfs-1t >> >> Initial write 138010 111023 29808 48170 >> Rewrite 205736 204538 119543 142765 >> Read 236500 237235 231860 236959 >> Re-read 242927 243577 240284 242776 >> Random read 204292 206010 201664 207219 >> Random write 180144 180461 1090 121676 >> >> No of threads=2 ext2-2t jfs-2t ext3-2t reiserfs-2t >> >> Initial write 196477 143395 62248 55260 >> Rewrite 261641 261441 126604 205076 >> Read 292566 292796 313562 291434 >> Re-read 302239 306423 341416 303424 >> Random read 296152 295430 316966 288584 >> Random write 253026 251013 958 203358 >> >> No of threads=4 ext2-4t jfs-4t ext3-4t reiserfs-4t >> >> Initial write 79513 172302 42051 48782 >> Rewrite 256568 269840 124912 231395 >> Read 290599 303669 327066 283793 >> Re-read 289578 303644 327362 287531 >> Random read 354011 353455 353806 351671 >> Random write 279704 279922 2482 250498 >> >> No of threads=6 ext2-6t jfs-6t ext3-6t reiserfs-6t >> >> Initial write 98559 69825 59728 15576 >> Rewrite 274993 286987 126048 232193 >> Read 330522 326143 332147 326163 >> Re-read 339672 328890 333094 326725 >> Random read 348059 346154 347901 344927 >> Random write 281613 280213 3659 227579 >> >> Cheers, >> Duc J Vianney, dvianney@us.ibm.com >> home page: http://www-124.ibm.com/developerworks/opensource/linuxperf/ >> project page: http://www-124.ibm.com/developerworks/projects/linuxperf >> >> >> - >> 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/ >> >> >> >> > > > > - > 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/ > > - 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/