Re: A/UX disk I/O (real numbers)

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Article #25585

#25585

From: James A. Woods
Date: Tue, 23 Feb 1988 23:08

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From article <6@fishpond.UUCP>, by fnf@fishpond.UUCP (Fred Fish):
> 
> 					Amiga	Amiga	Mac-II	Sun
> 					Floppy	CLtd	A/UX	3/50
> 					df1:	dh0:	HD80SC	
> 
> Read speed,    512 buffer (byte/sec)	11014	17133	55168	240499
> Read speed,   4096 buffer (byte/sec)	12024	17133	53708	234057

for the mac2, these numbers harden the very rough timing for

	time cat /usr/dict/words > /dev/null

(~200K bytes in four CPU seconds) done on an beta a/ux a year ago.  it
looks almost entirely due to the speed of the system5 vs. bsd4.2 filesystem.
considering how much other bsd stuff apple picked up,
why they didn't go for the berkeley filesystem is beyond me ...

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Message-ID: <219@eos.UUCP>

Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!aurora!eos!jaw

References: <6@fishpond.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!aurora!eos!jaw
From: jaw@eos.UUCP (James A. Woods)
Newsgroups: comp.sys.mac
Subject: Re: A/UX disk I/O (real numbers)
Message-ID: <219@eos.UUCP>
Date: 23 Feb 88 23:08:01 GMT
References: <6@fishpond.UUCP>
Organization: NASA Ames Research Center, California
Lines: 16

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