[jbossts-issues] [JBoss JIRA] (JBTM-1340) BeanPopulator overhead needs looking into

[Tom Jenkinson (JIRA)]

    [ https://issues.jboss.org/browse/JBTM-1340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12782994#comment-12782994 ] 

Tom Jenkinson commented on JBTM-1340:
-------------------------------------

Hi Mark,

Please can you upload the test you were using and the name of the tool that outputted the profiling information? We can look at tuning TxStats, I am thinking a listener pattern might help? Before that though, the test and profiler settings would be useful.

Thanks,
Tom
                
> BeanPopulator overhead needs looking into
> -----------------------------------------
>
>                 Key: JBTM-1340
>                 URL: https://issues.jboss.org/browse/JBTM-1340
>             Project: JBoss Transaction Manager
>          Issue Type: Enhancement
>      Security Level: Public(Everyone can see) 
>          Components: Common
>    Affects Versions: 4.17.2
>         Environment: Mac OS 10.7
>            Reporter: Mark Little
>            Assignee: Tom Jenkinson
>             Fix For: 5.0.0.M4
>
>
> During profiling, BeanPopulator can represent a 7% overhead. It may not seem like a lot, but for something as relatively simple as what BeanPopulator should be doing, it seems to be quite a bit.
>   6.9% - 4,477 ms - 10,000 inv. com.arjuna.ats.arjuna.coordinator.TxStats.enabled
>   6.9% - 4,477 ms - 10,000 inv. com.arjuna.ats.arjuna.common.arjPropertyManager.getCoordinatorEnvironmentBean
>   6.9% - 4,476 ms - 10,000 inv. com.arjuna.common.internal.util.propertyservice.BeanPopulator.getDefaultInstance
>   6.9% - 4,476 ms - 10,000 inv. com.arjuna.common.internal.util.propertyservice.BeanPopulator.getNamedInstance
>   2.5% - 1,587 ms - 10,000 inv. java.lang.StringBuilder.<init>
>   2.3% - 1,507 ms - 10,000 inv. java.lang.StringBuilder.toString
>   0.0% - 320 µs - 10,000 inv. java.util.concurrent.ConcurrentMap.containsKey
>   0.0% - 61 µs - 10,000 inv. java.lang.Class.getName
>   0.0% - 25 µs - 10,000 inv. java.util.concurrent.ConcurrentMap.get

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