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Date: Thu, 17 Oct 1996 16:40:04 -0700 (PDT)
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To: michaelv@MindBender.serv.net
CC: scrappy@ki.net, michaelh@cet.co.jp, mrcpu@cdsnet.net, current@freebsd.org
In-reply-to: <199610172054.NAA12845@MindBender.serv.net> (michaelv@MindBender.serv.net)
Subject: Re: Iozone: local vs nfs drives
From: asami@freebsd.org (Satoshi Asami)
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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