[jboss-jira] [JBoss JIRA] Commented: (JBAS-6549) Investigate increased memory requirements and deployment time

[C. Fed (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBAS-6549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12509036#action_12509036 ] 

C. Fed commented on JBAS-6549:
------------------------------

To follow up on Magnus's post, I installed several JDK's to see which versions actually affected the memory usage.  

I have one SEAM application deployed and added one mysql data source.  To give you an idea of my app size, I have 44 Seam components, 12 of which are actual EJBs.  I count about 24 jar files also deployed as libraries.

The JVM settings I used in each test were: 
     -Xms256M -Xmx786M -XX:MaxPermSize=384M -Dorg.jboss.resolver.warning=true 
    -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Dorg.jboss.resolver.warning=true 

Here are the results.  Each memory usage was collected after the server started up with the app deployed.  I pulled the memory and VM usage from good old windows task manager:

*** JDK: Mem Usage / VM Size ***
JDK 1.6.0_06: 690M / 975M
JDK 1.6.0_12: 693M / 979M
JDK 1.6.0_13: 700M / 753M
JDK 1.6.0_14: 359M / 438M
JDK 1.6.0_15: 360M / 440M
JDK 1.6.0_16: 353M / 433M
JDK 1.6.0_17: 356M / 436M
JDK 1.6.0_18: 556M / 761M



> Investigate increased memory requirements and deployment time
> -------------------------------------------------------------
>
>                 Key: JBAS-6549
>                 URL: https://jira.jboss.org/jira/browse/JBAS-6549
>             Project: JBoss Application Server
>          Issue Type: Task
>      Security Level: Public(Everyone can see) 
>          Components: Deployers
>    Affects Versions: JBossAS-5.0.0.GA, JBossAS-5.0.1.GA
>            Reporter: Dimitris Andreadis
>            Assignee: Ales Justin
>         Attachments: AS 5_x profiler snapshot.zip
>
>
> A user reported x2 increase in deployment time and x4 increase in memory usage when moving an application from JBoss 4.2 -> 5.x.
> We need to investigate how to improve both the memory usage and the deployment time.

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