[jboss-jira] [JBoss JIRA] Commented: (JBCACHE-937) Benchmark VersionAwareMarshaller

Tue Mar 27 10:55:59 EDT 2007

    [ http://jira.jboss.com/jira/browse/JBCACHE-937?page=comments#action_12357469 ] 

Manik Surtani commented on JBCACHE-937:
---------------------------------------

Note that I have updated VersionAwareMarshallerPerfTest to include:

1)  A "warm-up" loop for hotspot VMs to optimise
2)  Use of a more realistic object to serialise (a typical prepare() method call) rather than a random Map.  The VAM is only really efficient for known method calls.
3)  Added size of byte array generated to the report generated

> Benchmark VersionAwareMarshaller
> --------------------------------
>
>                 Key: JBCACHE-937
>                 URL: http://jira.jboss.com/jira/browse/JBCACHE-937
>             Project: JBoss Cache
>          Issue Type: Task
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 2.0.0.ALPHA2
>            Reporter: Galder Zamarreno
>         Assigned To: Manik Surtani
>             Fix For: 2.0.0.GA, 2.0.0.CR1
>
>
> Benchmark VersionAwareMarshaller to make it more performant. There's already a
> unit test to use it as base: VersionAwareMarshallerPerfTest.
> It should probably make comparison failures based on results from different
> marshalling methods, i.e, if difference bigger than x, fail. Also add marshalling different
> types of objects.
> Potential performance improvements:
> - Using similar techniques as used in ExposedByteArrayOutputStream (JGroups) for VAM? 
> Needs profiling to determine effect.

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