JBOSS: HEAP MEMROY USAGE ------------------------ Key: JBAS-7058 URL: https://jira.jboss.org/jira/browse/JBAS-7058 Project: JBoss Application Server Issue Type: Bug Security Level: Public (Everyone can see) Components: System service Affects Versions: JBossAS-5.1.0.GA Environment: OS Ubuntu 8.04 kernel 2.6.24 JVM 1.6_14 CPU: Intel Core 2 duo 3.00 GHZ E8400 Reporter: Salvatore Di Franca Assignee: Dimitris Andreadis When i start the Jboss application server the percentage of heap used splashes 99% how you see follows:. {Heap before GC invocations=142 (full 1): PSYoungGen total 56832K, used 55472K [0xb07d0000, 0xb40b0000, 0xb40b0000) eden space 55360K, 100% used [0xb07d0000,0xb3de0000,0xb3de0000) from space 1472K, 7% used [0xb3f40000,0xb3f5c000,0xb40b0000) to space 1408K, 0% used [0xb3de0000,0xb3de0000,0xb3f40000) PSOldGen total 466048K, used 198091K [0x940b0000, 0xb07d0000, 0xb07d0000) object space 466048K, 42% used [0x940b0000,0xa0222d38,0xb07d0000) PSPermGen total 64384K, used 64371K [0x740b0000, 0x77f90000, 0x940b0000) object space 64384K, 99% used [0x740b0000,0x77f8ce08,0x77f90000) Heap after GC invocations=142 (full 1): PSYoungGen total 56768K, used 144K [0xb07d0000, 0xb40b0000, 0xb40b0000) eden space 55360K, 0% used [0xb07d0000,0xb07d0000,0xb3de0000) from space 1408K, 10% used [0xb3de0000,0xb3e04000,0xb3f40000) to space 1280K, 0% used [0xb3f70000,0xb3f70000,0xb40b0000) PSOldGen total 466048K, used 198091K [0x940b0000, 0xb07d0000, 0xb07d0000) object space 466048K, 42% used [0x940b0000,0xa0222d38,0xb07d0000) PSPermGen total 64384K, used 64371K [0x740b0000, 0x77f90000, 0x940b0000) object space 64384K, 99% used [0x740b0000,0x77f8ce08,0x77f90000) } I am starting jboss with the following jvm params; -Xms512m -Xmx512m -XX:MaxPermSize=512M -XX:+PrintHeapAtGC -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira