Date: Thu, 17 Oct 1996 16:40:04 -0700 (PDT) From: asami@freebsd.org (Satoshi Asami) To: michaelv@MindBender.serv.net Cc: scrappy@ki.net, michaelh@cet.co.jp, mrcpu@cdsnet.net, current@freebsd.org Subject: Re: Iozone: local vs nfs drives Message-ID: <199610172340.QAA13043@sunrise.cs.berkeley.edu> In-Reply-To: <199610172054.NAA12845@MindBender.serv.net> (michaelv@MindBender.serv.net)
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* 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
Fast-Wide disks on Adaptec 2940UW.
Satoshi
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