Per Eden Space Question?

[James Louis-Foster]

Hello All,

I was wondering what the per eden space meant for the jira application- today it was at 96 percent...

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This lists detailed information about the various parts of memory that the Java virtual machine uses to store its data. The information it presents is not a lot of use without a detailed understanding of this particular VM's garbage collector and how it is configured. This page will generally only be useful to Atlassian's support engineers. Specifically, high usage of a particular memory pool does not necessarily indicate any problem.
Code Cache	21 % Free (Used: 38 MB Total: 48 MB)
Par Eden Space	28 % Free (Used: 18 MB Total: 25 MB)
Par Survivor Space	33 % Free (Used: 2 MB Total: 3 MB)
CMS Old Gen	42 % Free (Used: 577 MB Total: 992 MB)
CMS Perm Gen	50 % Free (Used: 128 MB Total: 256 MB)

[Andrew Frayling · Accepted solution]

Hi,

You shouldn't need to worry about Eden Space. When objects are created they are allocated memory in Eden Space and when Eden Space is full it triggers a minor garbage collection where objects are either destroyed or moved to a Survivor Space. This does a better job of explaining it that I can - http://middlewaremagic.com/weblogic/?tag=eden-space

Hope that helps?

Andrew.

[James Louis-Foster]

Thank you very much for your detailed response