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From: det@hawkmoon.MN.ORG (Derek E. Terveer)
Newsgroups: comp.periphs.scsi
Subject: Re: Seek-time controller dependent ???
Message-ID: <1991Apr15.193501.11465@hawkmoon.MN.ORG>
Date: 15 Apr 91 19:35:01 GMT
References: <1991Mar28.120818.28142@informatik.uni-erlangen.de> <XDmZZ4w164w@ersys.uucp>
Organization: Home System (One of the Eternal Champions); Eagan, MN, 55123-2507, USA
Lines: 19

ersys!bking@nro.cs.athabascau.ca (Barry King) writes:

>I used to run my Conner CP3200F with an Adaptec 1540B in a 386/33MHz ISA 
>box.  I now use a DPT PM2001/95 (SmartConnex).  The difference in seek 
>times between the two HBAs is almost 1 ms in favour of the DPT.  [..]
>has a full 16 bit path and uses a 10 MHz 68000.  The Adaptec uses an 8 
> Throughput is also several percentage 
>points better using the DPT.  I attribute this to the processor speed and 
>maybe the BIOS on the HBA(???).

That is a pretty small margin to attribute to anything unless you have a
pretty exacting benchmark and a very controlled environment.  What kind
of test are you using to determine this?  The "several percentage
points" that you are observing may very well be lower than the
resolution of your test...
-- 
Derek "Tigger" Terveer	det@hawkmoon.MN.ORG -- U of MN Women's Lax
I am the way and the truth and the light, I know all the answers; don't need
your advice.  -- "I am the way and the truth and the light" -- The Legendary Pink Dots