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Date: Mon, 9 Oct 1995 07:45:19 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199510082145.HAA11073@godzilla.zeta.org.au>
To: julian@ref.tfs.com, roberto@keltia.freenix.fr
Subject: Re: VLB Disk Controllers
Cc: bde@zeta.org.au, dennis@etinc.com, hackers@freebsd.org
Sender: owner-hackers@freebsd.org
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>> > transfer speed is 1.25286e+07 bytes/sec

>heh?
>how do you get 12MB/sec on a 10MB/sec SCSI bus?

It's the relative transfer speed for transferring 4K blocks and 8K
blocks.  If 4K blocks are transferred at 5MB/sec and 8K blocks are
transferred at 10MB/sec, then the relative speed is infinite :-).
This shows that the test is biased.  It prints the speed mainly as
a sanity test.  If the speed isn't close to the SCSI bus speed, then
you shouldn't trust any of the results of the test.

Bruce