*BSD News Article 12947


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Newsgroups: comp.os.386bsd.bugs
Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!elroy.jpl.nasa.gov!usc!cs.utexas.edu!geraldo.cc.utexas.edu!portal.austin.ibm.com!awdprime.austin.ibm.com!fredriks
From: fredriks@austin.ibm.com (Lars Fredriksen)
Subject: IOZONE results
Originator: @worf.cet.austin.ibm.com
Sender: news@austin.ibm.com (News id)
Message-ID: <C43MBo.3owM@austin.ibm.com>
Date: Thu, 18 Mar 1993 19:04:36 GMT
Organization: IBM Austin
Lines: 26


Hi,
	This is not a bug per se, as much as a request to see what
other people are seeing.

	I ran iozone auto on my machine and got the maximum of 500K/s
throughtput. I saw a report from someone running Interactive Unix on
a 50MHz 486 with a Bustek controller getting 4.5M/s.

	My machine is a 33MHz 486 with 128K of cache, 16Mb of Memory,
	with an Adaptec 174x controller. I have Julians scsi drivers,
	and the drive is supposed to be capable of 5M/s.

Anyone have a clue to why I am seeing a factor of 10 difference?  

Where/how does the kernal determine who big of a buffer cache to use?


	Sincerely,

	Lars Fredriksen
-- 

Regards,

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