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Date: Tue, 29 May 2007 14:54:56 -0400
From: Kris Kennaway <kris@obsecurity.org>
To: St?le Kristoffersen <staalebk@ifi.uio.no>
Message-ID: <20070529185456.GA48827@rot13.obsecurity.org>
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Cc: Nick Gustas <freebsd-fs@tychl.net>, freebsd-fs@freebsd.org
Subject: Re: ZFS performance
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On Tue, May 29, 2007 at 01:12:18AM +0200, St?le Kristoffersen wrote:
> On 2007-05-14 at 10:42, Nick Gustas wrote:
> > I see the same behavior that St?le is seeing, I can "fix" it by setting 
> > vfs.zfs.prefetch_disable="1" in loader.conf.  I'm assuming something in 
> > the prefetch code isn't quite right?
> 
> Ah, this _greatly_ improved the usability of my fileserver! Thanks for the
> tip :)

How does filesystem performance change?  I thought ZFS needs to do
prefetching to improve read performance.

Kris