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Date: Fri, 22 Feb 2008 18:16:08 +1100
From: David Chinner <dgc@sgi.com>
Subject: Re: Marking inode dirty latency > 1000 msec on XFS!
Message-ID: <20080222071608.GT155407@sgi.com>
References: <47B5DD9C.3080906@gmail.com> <47BE6C5C.2000605@sgi.com>
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To: Lachlan McIlroy <lachlan@sgi.com>
Cc: =?iso-8859-1?B?VPZy9ms=?= Edwin <edwintorok@gmail.com>, Arjan van de Ven <arjan@linux.intel.com>, xfs@oss.sgi.com

On Fri, Feb 22, 2008 at 05:31:56PM +1100, Lachlan McIlroy wrote:
> Török Edwin wrote:
> >FWIW, this is a slow laptop hdd (5400 rpm, ST96812AS), but latency of 1
> >second is still big.
> >
> >Are there any settings I can tweak to reduce latency?
> Um, not that I am aware of.

Try using a filesystem that has lazy-count enabled.

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group