Re: 2.6.21-rc1: CIFS cheers, NFS4 jeers

[Bill Davidsen]

Florin Iucha wrote:
> On Tue, Feb 27, 2007 at 09:36:23PM -0500, Bill Davidsen wrote:
>   
> > Florin Iucha wrote:
> >     
> > > Hello, it's me and my 70 GB of photos again.
> > >
> > > I have tested both CIFS and NFSv4 clients in kernel 2.6.20-rc1 . CIFS
> > > passed with flying colors and NFSv4 stalled after 7 GB.
> > >       
>
>   
> > Neil has been diddling NFS, I did some light testing with 2.6.20-git14 
> > with 190GB of mp3 and mpg files (library of congress folk music) without 
> > hangs. Just "did it work" tests, copy 20-30GB to server, do md5 on the 
> > data pulled back from the server.
> >
> > Didn't hang, performance testing later.
> >     
>
> 2.6.20-rcX used to copy all files then hang on certain operations that
> I think used the VFS.  2.6.21-rc1 stalls the NFS transfer itself after
> several GB.  The data was never corrupted.
>
> Have you tried copying _ALL_ 190 GB to the server?

No, but as noted I was doing 20-30GB, so if "several" is a small number 
I'm not seeing that behavior. I'm using a Gbit connection if that is not 
the same as your setup. I have additional testing queued for time 
available this week.

--
bill davidsen <davidsen@xxxxxxx>
 CTO TMR Associates, Inc
 Doing interesting things with small computers since 1979

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