[infinispan-dev] very interesting performance results

[Bela Ban]

On 1/26/12 6:58 PM, Mircea Markus wrote:
> Hi,
>
> As discussed on another thread, I've hacked the remote get to only go to a
> single node. The performance of put almost doubled, whilst the one of gets
> decreased by about 10 percent.
> The performance decrease for gets is understandable, but I can't really
> understand why the write got so very fast. The OOB thread pool is not shared
> between the writes and the reads...


Are both reads and writes marked as OOB ? Then they share the same OOB 
thread pool !


> That makes me think that there might be a contention point between OOB and regular threads?

Both regular and OOB message are added to the *same* receive window on 
the receiver side, so there are definitely contention points between them...

-- 
Bela Ban
Lead JGroups (http://www.jgroups.org)
JBoss / Red Hat