linux-kernel - Re: 2.6.21.1 - 97% wait time on IDE operations

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Date:	Sun, 27 May 2007 13:02:28 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Tommy Vercetti <vercetti@...w.org>
Cc:	"Ray Lee" <ray-lk@...rabbit.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.21.1 - 97% wait time on IDE operations

> > That looks fine. Your filesystem may just be very fragmented. I'm not
> > familiar with how reiser3 filesystems age, so if you've had the system
> > installed for quite some time, it may be time to back it up and
> > reinstall. Dunno.
> yeah, and they say unix FSes don't need defragmentation.... my bottom...

Provided they don't get within about 5-10% of full a lot of the time Unix
file systems generally don't  - especially with preallocators. Reiser3 is
not a traditional unix file system, its very different to almost any
other fs, and it does need defragmenting.
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