*BSD News Article 29135


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From: root@faser.cs.olemiss.edu (Charlie Root)
Newsgroups: comp.os.386bsd.questions
Subject: FreeBSD: iozone results
Date: 4 Apr 1994 05:11:45 GMT
Organization: Dept. of Computer Science, Univ. of Ms
Lines: 32
Message-ID: <2no7ih$qq5@Tut.MsState.Edu>
NNTP-Posting-Host: faser.cs.olemiss.edu

I'm running FreeBSD 1.0.2 on a 486-66 with 16M RAM & a DTC3290 SCSI 
controller. I got iozone from freebsd.cdrom.com and ran it with the following 
results:

	Operating System: POSIX 1003.1-1988

IOZONE: auto-test mode

	MB      reclen  bytes/sec written   bytes/sec read      
	...
	1       4096    4839581             1165084             
	1       8192    5242880             1123474             
	2       512     3700856             1245832             
	2       1024    4660337             1165084             
	2       2048    5991862             1133595             
	2       4096    6622585             1113532             
	2       8192    7401712             1094166             
	4       512     1123474             798915              
	...

First of all, aren't reads supposed to be faster than writes? 
Secondly, are these "normal" results? or can i get better I/O? 

any input at all will be appreciated.
BTW i'm using 8k blocks on the filesystem.

thanx
viren shah
viren@faser.cs.olemiss.edu