[OpenAFS] ReiserFS /vicep, general performance with lots of vols in single part?

Michael Loftis mloftis@wgops.com
Thu, 04 Dec 2003 15:10:26 -0700

I was thinking about impact on vos create, salvager operations, etc. (I'm 
not sure what other things might create this list, the fileservers on 
startup?) that need to gain a list of volumes, or traverse a list of 
volumes.  Granted as you get more volumes it will always take longer, but I 
know for a fact that ext2/3 degrades in an entirely non-graceful manner for 
access items like that, whereas Reiser does not.

--On Thursday, December 04, 2003 16:40 -0500 Derrick J Brashear 
<shadow@dementia.org> wrote:

> On Thu, 4 Dec 2003, Michael Loftis wrote:
>> One of the reasons I'm looking at reiser is because of the potentially
>> staggering number of volumes I may have on a single partition
>> (10k+)...with all the small VOL*.vol files in the /vicep?? I think that
>> ext3 would get huge slowdowns.
> "All the small .vol files" are headers which aren't where the real I/O is.
> The real I/O is on files which are exactly the same size as what you wrote
> into AFS. Write a 1gb file, have a 1gb file in /vicepa/AFSIDat/....
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