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How can I make IDEA to run faster in Ubuntu? I am running it in a i7 thinkpad with 6 gigs of RAM.
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From the main menu, select Help | Change Memory Settings. Set the necessary amount of memory that you want to allocate and click Save and Restart.
You either start with pressing Alt+J (and then IntelliJ IDEA selects a symbol at caret), or you can just select something as you normally would. Then, press Alt+J and IntelliJ IDEA will search the current file forward until it finds a matching piece of text, which it adds to the selection.
IntelliJ 13 uses high performance GPU under embedded Java 1.7 – IDEs Support (IntelliJ Platform) | JetBrains.
Disable all unused plugins for example Struts 2, Subversion Integration, UI Designer if you don't have deal with them.
Also increase memory heap, for that I suggest you check following links:
Tuning IntelliJ IDEA
JetBrains' new intelliJ IDEA 13 slow?
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