*BSD News Article 31607


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From: John Dyson <dysonj@delphi.com>
Newsgroups: comp.os.386bsd.questions
Subject: Re: FreeBSD1.1.5???
Date: Thu, 9 Jun 94 12:51:16 -0500
Organization: Delphi (info@delphi.com email, 800-695-4005 voice)
Lines: 19
Message-ID: <hkwufC8.dysonj@delphi.com>
References: <2t3s69$bv6@news.cs.tu-berlin.de> <5y+N-2j.dysonj@delphi.com> <mldCr4CIy.GEE@netcom.com>
NNTP-Posting-Host: bos1a.delphi.com
X-To: Matthew Deter <mld@netcom.com>

Matthew Deter <mld@netcom.com> writes:
 
>I ran the iozone tests and got about 1.2 Meg/s (with peaks much
>higher) on my 1542 with a Maxtor 540SL.  The writes were 660k/sec or
>so.  I thought it was the disk (altho it seemed a bit odd to me.)  Are
>you saying that 1.1.5 will speed this up?  (that's cool)
 
The speed problem that you are having might be related to both the
lack of clustering and a slightly suboptimal newfs command usage.  The
ufs defaults were chosen for old hardware that needed interleaving, etc.
A better newfs command might be:
 
	newfs -d 0 -n 1 -a 4 sd0a
 
The -a 4 might not be needed --  but sometimes I am religious about
these things.  The clustering will help too -- but not much if your disk
isn't set up for it.
 
John