How to increase the memory heap size on IntelliJ IDEA?

Question

I want to allocate around 1GB of heap size, but I can\'t seem to figure it out.

How to do this?

Answer 1

For 64-bit Windows, make sure to run idea in 64 bit mode(idea64.exe) and change settings in "C:\Program Files (x86)\JetBrains\IntelliJ IDEA 15.0.1\bin\idea64.exe.vmoptions" file. These settings works fine for me

-Xms512m
-Xmx2024m
-XX:MaxPermSize=700m
-XX:ReservedCodeCacheSize=480m