[infinispan-dev] poll on self-tuning ISPN / JGROUPS paramters

[Manik Surtani]

I would also add:

* Lock acquisition timeout
* various thread pool sizes

Cheers
Manik

On 21 Jul 2011, at 20:20, Paolo Romano wrote:

> Hi,
> 
> in the last Cloud-TM's meeting in Rome we have discussed the idea of 
> posting a poll asking to ISPN's users which parameters they consider 
> more complex to tune, or which parameters they consider as more 
> important to be self-tuned.
> 
> Before we post the poll, however, we thought to first ask you if you 
> think that we could suggest also different parameters.
> 
> The current list of parameters includes:
> 
>     - size of the marshalling buffer
> 
>     - frequency with which replicationQueue (for asynchronous acks) is 
> processed:
>         - clustering->async-> replQueueMaxElements
>         - clustering->async-> replQueueInterval
> 
>     -number of max concurrent transactions  (currently this is 
> unbounded, but we could self-tune the multi-programming level to 
> maximize performance depending on the number of available cores, the 
> actual conflict rate among transactions etc.)
> 
>     -lock striping, also adapting size of lock pool (striping can lead 
> to false sharing, but reduce the memory footprint and the size of the 
> exchanged messages)
> 
>     -adaptive timeout for deadlock detection, based on the avg duration 
> of a transaction/conflict rate etc
> 
> Any suggestions?
> 
> Cheers,
> 
>     Paolo
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--
Manik Surtani
manik at jboss.org
twitter.com/maniksurtani

Lead, Infinispan
http://www.infinispan.org