What is the gain from declaring a method as static

Question

I\'ve recently been looking through my warnings in Eclipse and come across this one:

Answer 1

From the Android Performance guidelines:

Prefer Static Over Virtual If you don't need to access an object's fields, make your method static. Invocations will be about 15%-20% faster. It's also good practice, because you can tell from the method signature that calling the method can't alter the object's state.

http://developer.android.com/training/articles/perf-tips.html#PreferStatic