Eclipse and PermGen space...

My home computer is an AMD64 machine, onto which I'd installed the 64-bit version of Ubuntu Dapper, but It was a basic install without any fluff (beyond mythtv, that is). I installed Eclipse on it for some work (specifically, the Callisto R6), but it was interminently thowing OutOfMemory errors.

Specifically it was throwing java.lang.OutOfMemoryError: PermGen space errors, which was a bit baffling, as the memory used by the VM was well below the allowed maximum memory usage. After a bit of googling around, turns out that PermGen is the permanent generation of objects in the VM (Class names, internalized strings, objects that will never get garbage-collected). An easy, if somewhat memory-hungry fix is to enlarge the maximum space for these objects by adding

-XX:PermSize=64m
-XX:MaxPermSize=128m

to the $ECLIPSE_HOME/eclipse.ini file, which has me happily loading all Callisto plugins at the same time(!).

@ Thursday, 08 June 2006, 19:57 in (Eclipse) - 3 comments

Comments

Comment by Samon Friday, 01 December 2006, 17:09

I got the same problem.
I'll try this : eclipse.exe -vmargs -Xms512M -Xmx1024M -XX:PermSize=64m -XX:MaxPermSize=128m

Merci !
Comment by Sameeron Tuesday, 25 March 2008, 11:42

make it
-XX:PermSize=128m
-XX:MaxPermSize=256m

:)
given your system RAM permits that
Comment by Saeid Zebardast on Monday, 30 June 2008, 14:57

Thanks

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