A smaller GC benchmark

[bearophile]

Regarding that Java version, the HotSpot Java compiler FAQ warns to not use code like that:
http://java.sun.com/docs/hotspot/HotSpotFAQ.html

It says:

if you insist on using/writing microbenchmarks like this, you can work around the problem by moving the body of main to a new method and calling it once from main to give the compiler a chance to compile the code, then calling it again in the timing bracket to see how fast HotSpot is.