From owner-freebsd-geom@FreeBSD.ORG Fri Sep 21 16:33:48 2007 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 266FE16A418 for ; Fri, 21 Sep 2007 16:33:48 +0000 (UTC) (envelope-from softsearch@gmail.com) Received: from rv-out-0910.google.com (rv-out-0910.google.com [209.85.198.187]) by mx1.freebsd.org (Postfix) with ESMTP id EC36C13C447 for ; Fri, 21 Sep 2007 16:33:47 +0000 (UTC) (envelope-from softsearch@gmail.com) Received: by rv-out-0910.google.com with SMTP id l15so741812rvb for ; Fri, 21 Sep 2007 09:33:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; bh=RHOxZOG+JRIq22Z4qAxqn/R8wpeAk6FRn738oNcAfUU=; b=mwoRN7LDx5Uek5tVqJsvxTWGpbY++nTa3cNrZZ3v8Ss+K9XIhj11LEdkJWDJb/2hipHH6nqUAsDoP4FDh1+cf+XesRINlG++2w3cMJwYivXABwi5syCJUv5nn3J+IeKpgEyBKqbmCZaPLgcuk/7UW8yi+fQaxnfaPg89Rd274uc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=lbVRHG2nPPWHALpaHCo7f137Xkk4j7dKF9Sl7oZ5qvuWX2XPrDg/C1kq/ZbfttScQZmsyDGMDNdaWcSiUXcBnkmbCioTgcHufaWz6E6XDqeUaa2Ayv7plfxZxTPWFgnqe/xHLzvGjrNydnARjOQ27NTim0g3vKdthTSle6+Kzb8= Received: by 10.114.153.18 with SMTP id a18mr3677464wae.1190392427095; Fri, 21 Sep 2007 09:33:47 -0700 (PDT) Received: by 10.141.85.16 with HTTP; Fri, 21 Sep 2007 09:33:47 -0700 (PDT) Message-ID: Date: Fri, 21 Sep 2007 20:33:47 +0400 From: "=?KOI8-R?B?7cnIwcnMIO3PzsHbo9c=?=" To: "Pawel Jakub Dawidek" In-Reply-To: <20070921143318.GC5690@garage.freebsd.pl> MIME-Version: 1.0 References: <20070921143318.GC5690@garage.freebsd.pl> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Re: raidtest for zfs 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, 21 Sep 2007 16:33:48 -0000 > > How to run raidtest ( > > http://www.freebsdsoftware.org/benchmarks/raidtest.html ) on zfs? > > > > diskinfo dos'n work. > > raidtest is for block device testing. If you want to test ZFS with it, > you need to create ZVOL with 'zfs create -V' command, eg. > > # zpool create tank raidz da{0,1,2,3,4} > # zfs create -V 100g tank/vol > # diskinfo -v /dev/zvol/tank/vol I get strange and fantastic results: > raidtest genfile -s 209715200 -S 512 -n 50000 -r -f File raidtest.data generated. Number of READ requests: 50000. Number of WRITE requests: 0. Number of bytes to transmit: 3279956992. > raidtest test -d /dev/zvol/tank/vol -n 10 Read 50000 requests from raidtest.data. Number of READ requests: 50000. Number of WRITE requests: 0. Number of bytes to transmit: 3279956992. Number of processes: 10. Bytes per second: 245146813 Requests per second: 3737 ^^^^^ - too big! > raidtest genfile -s 209715200 -S 512 -n 50000 -f File raidtest.data generated. Number of READ requests: 25046. Number of WRITE requests: 24954. Number of bytes to transmit: 3311506944. > raidtest test -d /dev/zvol/tank/vol -n 10 Read 50000 requests from raidtest.data. Number of READ requests: 25046. Number of WRITE requests: 24954. Number of bytes to transmit: 3311506944. Number of processes: 10. Bytes per second: 195043585 Requests per second: 2944 ^^^^^ - too big! The real results is: > raidtest test -d /dev/raid3/g3 -n 10 Read 50000 requests from raidtest.data. Number of READ requests: 50000. Number of WRITE requests: 0. Number of bytes to transmit: 3316146176. Number of processes: 10. Bytes per second: 11398078 Requests per second: 171 What is wrong? How to run raidtest correctly on /dev/zvol/tank/vol ? -- Michael