Re: Fastest way to "find / -mtime +7".....

[Jonathan Briggs <jbriggs@esoft.com>]

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On Tue, 2005-07-19 at 10:55 -0700, Ed Walker wrote:
> I've got a lot of small maildir files stored on a reiser-fs  
> partition.  Currently we expire out the old stuff using
>      find /mail -mtime +7 -type f -print0 | xargs -0 rm -rf
> 
> this is pretty slow on reiser, at least compared with ext2/3, and I  
> understand that it may be because the find command returns the names  
> in a non-optimal order (ie readdir order?).
> 
> Is there something we can do to speed it up?  Any suggestions?
> 
> Thanks-
> 
> Ed

I think Reiser3 is slow more because with mtime, find has to stat each
file.  I did a couple ad-hoc tests and it seems to be about 40x slower
on directory list with stat than just plain directory lists.  I didn't
try ext2/3.

I believe the reiser3 directory order problems with maildir are related
to something else, like not finding new mail at the end of the
readdir()? 
-- 
Jonathan Briggs <jbriggs@esoft.com>
eSoft, Inc.

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