[infinispan-dev] distribution's impact on performance

[Mircea Markus]

On 1 Feb 2011, at 15:12, Bela Ban wrote:
> Hmm, interesting !
> 
> For GETs, I think the only reason the line degrades a only slightly 
> after 5 nodes is that the chance of hitting youself (therefore no 
> communication needed) decreases with increasing cluster size. I wonder 
> how this would line would look like on cluster sizes of 30+ ...
+1
Did you have the chance to finish the jgroups plugin for Radargun? Very curious to see the results between (ISPN+evenDist) vs (jgroups with numOwners/cluster size local calls).
> 
> For PUTs, the degradation is more pronounced. I assume this is with 
> numOwners=2 ?
yes
> In that case, the chance of hitting yourself is twice of 
> that for GETs.
> 
indeed.
> Can you re-run this test with numOwners=1 ? I guess we should then see a 
> similar line for PUTs than for GETs.
indeed, it's very similar! Results attached.
> 
> I assume you're sending instructions on how to run this ideal distribution ?
https://sourceforge.net/apps/trac/radargun/wiki/WritingCustomPlugins

Cheers,
Mircea
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