Investigation of optimal sleep time calculation in game loop

Question

When programming animations and little games I\'ve come to know the incredible importance of Thread.sleep(n); I rely on this method to tell the operating system

Answer 1

Thread.sleep is inaccurate and makes the animation jittery most of the time.

If you replace it completely with Thread.yield you'll get a solid FPS without lag or jitter, however the CPU usage increases greatly. I moved to Thread.yield a long time ago.

This problem has been discussed on Java Game Development forums for years.