From owner-freebsd-geom@FreeBSD.ORG Fri Jun 26 23:36:55 2009 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C6D2E106564A; Fri, 26 Jun 2009 23:36:55 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: from mail-yx0-f181.google.com (mail-yx0-f181.google.com [209.85.210.181]) by mx1.freebsd.org (Postfix) with ESMTP id 6ED4E8FC12; Fri, 26 Jun 2009 23:36:55 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: by yxe11 with SMTP id 11so1582119yxe.3 for ; Fri, 26 Jun 2009 16:36:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type:content-transfer-encoding; bh=JGZppjjZhOYM/bf7ELTBW4DwjtExjQORB8KgC8wSEkU=; b=J4gSyAWfJuLIxHKTIdYgLtpHRb3A/+m5QXpVHrw95Zb3JBCFASPwSaeDgIsrceDZTM 1Eas7KsGBpZecy3H5/hAeZMlumk/qD426eVNi0dz5oyLeJ4uehk7xxe0IlFXt//xqaMH h7X4SMKtFlqfmGL9NZ8DYITtTyHqpiYK4tcdY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; b=oAifyxGsMFm8un2tnUsUNTiZkNvNTEQ19PvYkDB8jt9YQD7qT+1rvS8sQ4jt7THcLp gff8lmZdsiWz833kU98IIoYlP+SDijBGOUL2u6StCi6CGufK/Ed3Vr7K3IRfJYXGu9Nr juKHp5IjQ7wXm1OqpKD8PexymNH9n8YaG7YRM= MIME-Version: 1.0 Received: by 10.100.226.6 with SMTP id y6mr1325873ang.104.1246059414495; Fri, 26 Jun 2009 16:36:54 -0700 (PDT) Date: Sat, 27 Jun 2009 02:36:54 +0300 Message-ID: From: Dan Naumov To: freebsd-fs@freebsd.org, freebsd-geom@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Subject: read/write benchmarking: UFS2 vs ZFS vs EXT3 vs ZFS RAIDZ vs Linux MDRAID X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2009 23:36:56 -0000 To continue the subject of filesystem benchmarking (search the list for READ results posted a few days ago), here are some write and read/write results: Methodology: /data/5M and /data/1M have 5GB of data each in randomly-ordered chunks 5MB and 1MB in size, respectively. /data/zero.bin is a contiguous 8GB file. A process writes a burst of 5MB to a random location in /data/zero.bin once per second; other processes read chunks from /data/1M or /data/5M as appropriate (and as fast as possible) until the entire 5G dataset is read. Contiguous Write Performance: http://virtual.tehinterweb.net/livejournal/2009-06-22_zfs_diskperf/zfs-diskperf-contig-write.png Random Access Read/Write (5mb read chunks): http://virtual.tehinterweb.net/livejournal/2009-06-22_zfs_diskperf/zfs-diskperf-5MB-readwrite.png Random Access Read/Write (1mb read chunks): http://virtual.tehinterweb.net/livejournal/2009-06-22_zfs_diskperf/zfs-diskperf-1MB-readwrite.png These results are from the following forum thread: http://episteme.arstechnica.com/eve/forums/a/tpc/f/96509133/m/857002910041/p/4 Sincerely, - Dan Naumov