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From: blgardne@javelin.es.com (Blaine Gardner)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Speed of HardFrame/2000 and Quantum Q105S (problem) (longish)
Keywords: HardFrame, Quantum
Message-ID: <1990Nov29.043247.4041@javelin.es.com>
Date: 29 Nov 90 04:32:47 GMT
References: <3989.659757130@lemsys.UUCP>
Organization: Evans & Sutherland Computer Corporation
Lines: 24

clemon@lemsys.UUCP (Craig Lemon) writes:

[Tales of high speeds with cheap hardware deleted]

[The bottom line on a Hardframe/Quantum 105]
>r/w speed:      buf 32768 bytes, rd 227951 byte/sec, wr 140434 byte/sec

You should be seeing numbers a LOT higher than this. With a CDC Wren III
I was getting about 600-700 KB/sec (measured with DiskSpeed, it's a lot
more accurate and consistant than anything else out there). With a
Quantum 105 it's about 750-850 KB/sec. This is with a Hardframe and the
A2620 card, for a 68010 the numbers will be a little lower.

First guess is that the interleave on the drive is set to something
other than 1:1. The only way to change this is to back up the drive, and
run the low-level format again.

Second guess is fragmentation, it can easily cut your speed in half.

-- 
Blaine Gardner @ Evans & Sutherland  580 Arapeen Drive, SLC, Utah 84108
blgardne@esunix.UUCP                       BIX: blaine_g
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DoD #0046                          My other motorcycle is a Quadracer.