[OpenAFS] File systems on Linux, again.

Jeffrey Altman jaltman@secure-endpoints.com
Fri, 30 Nov 2007 14:37:30 -0500


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Jerry Normandin wrote:
> AFS on EXT3?  No there are Metadata issues.  EXT3 was intended for this.
> I inherited a mess here that I am fixing.  My predecessor built is using
> Ext3 for the /vicepa filesystems.  It takes a hell of a long time to
> create,
> Delete, or rename files.  I tested with Bonnie++... here are my stats:
> 
> Initial file performance baselines taken from ENG02 with 4096kbyte
> cache:
> 
> read performance on disk is 6.7 x faster than AFS
> read performance on nfs is 2.0 x faser than AFS
> 
> write performance is actually impressive.  file creation and deletion
> are very slow on afs.
> 
> file creation and deletion times is horrible.  I will be working on a
> solution to solve this.  Once file creation and deletion times are
> comparable to NFS, then AFS should perform well.

Upgrade to 1.4.5 and check your performance again.  You should see a
measurable improvement on EXT3.

Jeffrey Altman

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