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From: daveh@cbmvax.UUCP (Dave Haynie)
Newsgroups: comp.sys.amiga
Subject: Disk Speeds Indeed
Message-ID: <7701@cbmvax.UUCP>
Date: 19 Aug 89 03:11:34 GMT
Organization: Commodore Technology, West Chester, PA
Lines: 18

Some nice folks borrowed an A2630 and compared it to their A2620 in the same
system.  The disk controller is a 2090A.  DiskPerf sez:

A2620, 4 Megs:

	1024K	Reads 509875	Writes 371800 b/sec

A2630, 4 Megs:

	1024K	Reads 853333	Writes 503606 b/sec

I did tweak DMA a bit on the A2630 design, but I'm still impressed.  The drive
used was a Fujitsu SCSI drive I'm not familiar with, and the 2090A ROM wasn't
translated into 32 bit RAM, so it might still go a tad faster.
-- 
Dave Haynie Commodore-Amiga (Systems Engineering) "The Crew That Never Rests"
   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: hazy     BIX: hazy
            We have no choice.  We are, after all, professionals.