[OpenAFS] Speed of AFS

Kris Van Hees aedil-afs@alchar.org
Mon, 28 Feb 2005 11:05:56 -0500


That is rather slow, though it can depend on various influences in your
environment.  I am currently in the middle of a performance analysis on
the OpenAFS client, and can get 7-10MB/s on a 100Mbps ethernet (for
writes 7-8MB/s, for reads (non-cached data) about 9-10MB/s
(which is pretty much wire speed).  It depends a lot on the size of the
files involved though (and chunksize settings in the client).  With a
very large amount of small files, the performance in my test scenario
degrades to about 4-6MB/s.

More testing is going on to analyze things further though, and note that
the above is merely a very high level summary of what I found.

	Kris

On Mon, Feb 28, 2005 at 04:40:27PM +0100, Lars Schimmer wrote:
> Hi!
> 
> Just a quick question:
> What are the practical speed limits of OpenAFS?
> We get here round about 2-3 MB/Sec from server to client, and for some folks
> that's a bit to slow (on 100 MBit).
> Any hints for speeding this up to 7-8 MB/Sec?
> 
> Cya
> Lars
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