Low Performance Problems

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On Thu, 18 Jun 2009 15:02:34 +0200
Martin Reissner <mreissner at wavecon.de> wrote:

> [...]
> NFS:
> write: 74s
> read:  36s
> 
> GlusterFS 1 Server:
> write: 332s
> read:   59s
> 
> GlusterFS 2 Servers with Distribute:
> write: 331s
> read:   60s

Can you produce the same test for replicate, too?
A really interesting setup for people who want to get rid of NFS...
In theory the minimum time (caused by a FE network) should be below 23s for
read and write or maybe 46s for replicate write case. I know you have GBit
ethernet, but your disks won't cope with that anyway, so one would be content
with a factor 2 in real life. Nevertheless your test really shows that NFS is
not that bad.
A local-disk FUSE fs would be an interesting comparison, too.
-- 
Regards,
Stephan



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