[jboss-user] [Performance Tuning] - Re: Maximum XMX value on 32bit Windows Machine
Thank you again Peter, always fast and accurate. Antonello View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227415#4227415 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4227415 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [Performance Tuning] - Maximum XMX value on 32bit Windows Machine
Goodmorning, I'have some problems while setting the XMX JM value bigger than 1300m. When i set 1400 or 1500m the error returned by the run.sh is: --- Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. --- The o.s. is Windows Server 2003 32bit with this memory usage Total Physical Memory 16,383.08 MB Available Physical Memory 10.37 GB Total Virtual Memory23.41 GB Available Virtual Memory13.21 GB the server has more than 10GB of free physical memory. Searching google i found that the problem maybe is a limit in the address space on the 32bit version of Windows Server 2003. Is really possibile that i can't start JV istance with an XMX value bigger than 1300m? I have not experience with jb...@windows 32, any suggestion appreciated Thanks in advance Antonello View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227148#4227148 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4227148 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [Performance Tuning] - Re: Physical vs Virtual Memory
Yes, you are right, Sysinternal ProceXp displays the real working set that reaches 900MB Thank you ! View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227135#4227135 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4227135 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [Performance Tuning] - Re: Physical vs Virtual Memory
First of all, thanks for you answer. You are right, I also think that's a problem of memory allocation in Windows Server. I just tried to set the page file size to 0, but JV refuse to start. Is very strange: when the OOME errors occurs and the overloaded JavaService process hangs, the paging file usage peak is 100%, but the "peak mem usage" value of task manager is always 512MB for all JavaService processes! It seems that windows does not use more thank 512MB (the exact value of maxpermsize), nerver! I'm a bit frustrated, i read all 73 pages of this forum and searched all the web without find any answer. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227005#4227005 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4227005 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [Performance Tuning] - Re: Physical vs Virtual Memory
the posted configuration is wrong, this is the actual configuration: -Xmn256m -Xms1024m -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=512m -XX:+UseParallelGC View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4226860#4226860 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4226860 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [Performance Tuning] - Physical vs Virtual Memory
Good morning, i'm configuring JBoss 4.0.2 on Windows Server 2003 and i have a lot of problem concerning the memory managment. On this server are configured 10 VM for JBoss instances with this configuration: -Xmn1024m -Xms1024m -Xmx1100m -XX:PermSize=512m -XX:MaxPermSize=512m -XX:+UseParallelGC The server seem to allocate VM reserved XMX memory (1024MB*10) in the virtual memory instead on the physical memory. Only the MaxPermSize space (512*10) seem to be loaded in RAM, indeed, the related JBoss process use only 512MB of system physical memory. This results in an high swap file utilization, very low physical memory usage and in frequent OOME error. The paging usage peak is at 100% and the memory usage is always on 60% of 16GB avalaible. I'm googling without find anything regarding. What's wrong? Thanks in advance Antonello View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4226845#4226845 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4226845 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
