[Pvfs2-users] Performance issue using kernel interface

[Sam Lang]

Hi Sebastian,

Can you walk through your setup and testing environment in a bit more  
detail?  What kind of performance numbers are you getting from the  
kernel interface and pvfs2 apps?  Does the performance degrade over  
time the longer you have the kernel mounted, or does it start off bad?

Thanks,
-sam

On Sep 13, 2007, at 5:52 AM, Sebastian Bauer wrote:

> Hello,
>
> I'm about to test the pvfs2 filesytsem on our setup, which  
> comprises two i/o servers also configured to be metadata servers  
> and clients. In addition there are other clients. Clients should  
> use the kernel interface rather than the libpvfs2 library. However,  
> the performance of the system using the kernel interface drops to  
> an unusable speed while it seem to be fine with the libpvfs2 based  
> tools. What can be the issue here?
>
> Kernel (for all participiating servers and clients) is 2.6.21 on an  
> amd64 debian system.
>
> Thanks in advance!
>
> Ciao,
> Sebastian
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