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Subject: Re: tuning XFS for tiny files
References: <m23azlbpl1.fsf@tstotts.net>
From: Andi Kleen <andi@firstfloor.org>
Date: 19 Jul 2007 15:38:43 +0200
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To: timotheus <timotheus@tstotts.net>
Cc: linux-xfs@oss.sgi.com

timotheus <timotheus@tstotts.net> writes:

> Hi. Is there a way to tune XFS filesystem parameters to better address
> the usage pattern of 10000s of tiny files in directories such as:
>     maildir directory
>     mh mail directory
>     ccache directory
> 
> My understanding is that XFS will always be much slower than reiserfs
> with respect to deleting 10000s files; but that XFS might be possible to
> tune toward more rapid read access of 10000s of tiny files.

-d agcount=1 at mkfs time might help (unless you have a lot of CPUs) 

-Andi