Date: Fri, 18 Oct 1996 11:25:31 +0900 (JST) From: Michael Hancock <michaelh@cet.co.jp> To: Satoshi Asami <asami@freebsd.org> Cc: current@freebsd.org Subject: Re: Iozone: local vs nfs drives Message-ID: <Pine.SV4.3.93.961018112301.29655B-100000@parkplace.cet.co.jp> In-Reply-To: <199610172340.QAA13043@sunrise.cs.berkeley.edu>
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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
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