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

[Lucas POUZAC (JIRA)]

[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: 4.1.1, 4.0.1
         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
            Priority: Blocker
         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.

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira