gfs vs nfs: abysmal performance difference

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> but still it can't sustain a bonnie run:
>
>> sudo bonnie -d /mnt/nfs -m NFS
> File '/mnt/nfs/Bonnie.61622', size: 104857600
> Writing with putc()...done
> Rewriting...done
> Writing intelligently...done
> Reading with getc()...done
> Reading intelligently...done
> Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
> ? ? ? ? ? ? -------Sequential Output-------- ---Sequential Input--
> --Random--
> ? ? ? ? ? ? -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
> --Seeks---
> Machine ? ?MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU ?/sec
> %CPU
> NFS ? ? ? 100 ?9179 ?6.4 ?9195 ?2.2 ?6224 ?4.4 10590 ?7.6 1599999 99.9
> 3980.8 25.7
>
>> sudo bonnie -d /mnt/gfs -m GFS
> File '/mnt/gfs/Bonnie.61618', size: 104857600
> Writing with putc()...done
> Rewriting...done
>
> Bonnie: drastic I/O error (/mnt/gfs/Bonnie.61618): Input/output error

Can you post the client and server logs of this session?

Avati



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