From owner-freebsd-scsi Tue Jul 25 16: 1:32 2000 Delivered-To: freebsd-scsi@freebsd.org Received: from thelab.hub.org (nat193.142.mpoweredpc.net [142.177.193.142]) by hub.freebsd.org (Postfix) with ESMTP id 44E0F37B712; Tue, 25 Jul 2000 16:01:26 -0700 (PDT) (envelope-from scrappy@hub.org) Received: from localhost (scrappy@localhost) by thelab.hub.org (8.9.3/8.9.3) with ESMTP id TAA93276; Tue, 25 Jul 2000 19:59:27 -0300 (ADT) (envelope-from scrappy@hub.org) X-Authentication-Warning: thelab.hub.org: scrappy owned process doing -bs Date: Tue, 25 Jul 2000 19:59:26 -0300 (ADT) From: The Hermit Hacker To: Mike Smith Cc: freebsd-scsi@freebsd.org Subject: Re: 4.1RC read/write speeds ... In-Reply-To: <200007251948.MAA31740@mass.osd.bsdi.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Tue, 25 Jul 2000, Mike Smith wrote: > > > > Does this look right for a Dual-PIII, no load other then the operating > > system, idle disk *only* being used for the tests ... just seems low to > > me: > > > > > > Writing the 232 Megabyte file, 'iozone.tmp'...14.273438 seconds > > Reading the file...3.328125 seconds > > > > IOZONE performance measurements: > > 17043521 bytes/second for writing the file > > 73095100 bytes/second for reading the file > > The test is meaningless; you probably have a good portion of the 232MB > file in the buffer cache. 17MB/sec is far too fast for one of these > lame-duck WD SCSI disks, let alone 73MB/sec. d'oh ... I wasn't reading it right :( I was reading 1.7/7.3 ... To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message