From owner-freebsd-current Thu Oct 17 19:25:36 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id TAA17765 for current-outgoing; Thu, 17 Oct 1996 19:25:36 -0700 (PDT) Received: from parkplace.cet.co.jp (parkplace.cet.co.jp [202.32.64.1]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id TAA17757; Thu, 17 Oct 1996 19:25:33 -0700 (PDT) Received: from localhost (michaelh@localhost) by parkplace.cet.co.jp (8.8.0/CET-v2.1) with SMTP id CAA29727; Fri, 18 Oct 1996 02:25:31 GMT Date: Fri, 18 Oct 1996 11:25:31 +0900 (JST) From: Michael Hancock To: Satoshi Asami cc: current@freebsd.org Subject: Re: Iozone: local vs nfs drives In-Reply-To: <199610172340.QAA13043@sunrise.cs.berkeley.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-current@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Thu, 17 Oct 1996, Satoshi Asami wrote: > * Did you have tagged-command queuing enabled? According to my tests, > * that will make a BIG difference, if you have decent drives. > > I haven't seen tagged-queueing make much difference for reads. These > are the kind of numbers we've seen before (off the top of my head): > > w/o tag with tag > W R W R > Quantum Atlas 6 7 6 7 > Seagate 'Cuda 4 6 6 7 I guess we haven't addressed the original question though. It's strange, even if you consider the cache wiping effects. Our rotational delay defaults to zero doesn't it? Regards, Mike Hancock