Intellij 11.1.3 hangs after memory usage shoots above 900 MB

My heap settings for intellij are -Xms512m and -Xmx1300m while perm gen space is -XX:MaxPermSize=250m. I realized that everytime I have multiple intellij windows and the memory usage of intellij shoots up above 900 MB, it hangs. The CPU usage by intellij most of the times is 25%.
Any solutions or troubleshooting guidelines?

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Hi there,

Please check these two documents -- it should have all info you require:

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I wasn't able to take thread dumps through jstack since there was no java.exe running by the intellij process. Though intellij started taking thread dumps automatically after the UI got hung. Attached are the logs from the users directory.

Kindly let me know what you find.


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