[OpenAFS] AFS performance with .tar.gz

FBO fbo3@gmx.net
Sat, 8 Jun 2002 18:16:33 +0200


On Sat, Jun 08, 2002 at 12:22:29AM +0200, Sebastian Hanigk wrote:
> Hello,
Hi,

> 
> I have a question concerning OpenAFS performance. On my notebook, I'm
> using the Linux client (1.2.4), kernel is a vanilla 2.4.18, local
> cache 50MB.
> 
> Compiling the kernel or garnome in an AFS directory is just as fast as
> compiling on local space (my CPU isn't that fast ...), but as soon as
> I want to extract a bigger .tar.gz  - the mozilla sources for example
> - I don't get more than about 30k to 100k netload (I'm at least on a
> 10MBit link to the file server) and neither tar nor gzip show up with
> non-neglectable load.
> 
> Is this more or less a usual behaviour or can I tune it up on the
> client side?
I was able to increase performance within my cell dramatically by using
a ramdisk ( ~ 4 MB ) as local cache.
Maybe it's no good idea to do so when accessing lots of files in
globally distributed cells.

FBO