To see that performance matters, talk to the guys who are closer to the electricity bills that the big honking clusters demand. There is quite a bit of money to

To see that performance matters, talk to the guys who are closer to the electricity bills that the big honking clusters demand. There is quite a bit of money to be saved by using hardware effectively. BTW if 90% time is spent in garbage collection, something is definitely wrong in the choice of tools or methods.