*BSD News Article 7288


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Newsgroups: comp.unix.bsd
Path: sserve!manuel.anu.edu.au!munnari.oz.au!uunet!usc!sdd.hp.com!think.com!yale.edu!jvnc.net!nuscc!ntuix!eoahmad
From: eoahmad@ntuix.ntu.ac.sg (Othman Ahmad)
Subject: IDE vs SCSI-2 using iozone
Message-ID: <1992Nov2.085559.18528@ntuix.ntu.ac.sg>
Organization: Nanyang Technological University - Singapore
X-Newsreader: TIN [version 1.1 PL6]
Date: Mon, 2 Nov 1992 08:55:59 GMT
Lines: 40


Here are iozone results run on two different machines using different
hard-disks. The key difference is the IDE vs SCSI-2 hard-disk.

I only use iozone 1, just to be consistent and make the test more realistic.
Most applications do not need more than 1 Megabyte of sequential access..



386/25 no cache, Maxtor 7120 200Mbyte Hard-disk runnig 386bsd,patched to
Terry's beta.

Writing the 1 Megabyte file, 'iozone.tmp'...3.333333 seconds
Reading the file...2.483333 seconds

IOZONE performance measurements:
	314573 bytes/second for writing the file
	422245 bytes/second for reading the file

The test completed too quickly to give a good result
You will get a more precise measure of this machine's
performance by re-running IOZONE using the command:

Julian's machine, 486/50, Bustek SCSI-2 1.3G hard-disk(?)

IOZONE performance measurements:
        683854 bytes/second for writing the file
        499322 bytes/second for reading the file

The test completed too quickly to give a good result
You will get a more precise measure of this machine's
performance by re-running IOZONE using the command:


--
Othman bin Ahmad, School of EEE,
Nanyang Technological University, Singapore 2263.
Internet Email: eoahmad@ntuix.ntu.ac.sg
Bitnet Email: eoahmad@ntuvax.bitnet