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https://jira.jboss.org/jira/browse/JBAS-6549?page=com.atlassian.jira.plug...
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C. Fed commented on JBAS-6549:
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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
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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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