[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-7190) [Performance] - Degradation hibernate time after migration hibernate 3.3.1.GA --> 4.0.1

[Lucas POUZAC (JIRA)]

    [ https://hibernate.onjira.com/browse/HHH-7190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=46051#comment-46051 ] 

Lucas POUZAC commented on HHH-7190:
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You could zoom this attached file if you load in new browser tab. 
Regards

> [Performance] - Degradation hibernate time after migration hibernate 3.3.1.GA --> 4.0.1
> ---------------------------------------------------------------------------------------
>
>                 Key: HHH-7190
>                 URL: https://hibernate.onjira.com/browse/HHH-7190
>             Project: Hibernate ORM
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 4.0.1, 4.1.1
>         Environment: java version "1.6.0_23"
> Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
> Java HotSpot(TM) 64-Bit Server VM (build 19.0-b09, mixed mode)
>            Reporter: Lucas POUZAC
>              Labels: performance
>         Attachments: hibernate.jpg
>
>
> After migrating our application to version 4.0.1 of hibernate, we noticed a performance degradation. (same problem with the version 4.1.1)
> Before migration, the average response time of our http request was 747ms (during load test).
> Since the migration, the average response time is greater than 1200ms (during the same load test).
> After recording the behavior of the JVM, we note that Hibernate uses methods of the java api with synchronized blocks (java.lang.reflect.Proxy.getProxyClass (...)). See attachment.

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