Idea 4.5 has a memory leak. After working for a couple of hours (if I'm lucky), it builds up its memory usage and eventually just keeps on doing garbage collection every 20 seconds or so until I restart it.
No matter what I do (I even close the project!!) it still stays on about 180mb (currently my max is 250mb)
This is VERY annoying, was this fixed in 5.x?