>With Java, you have to go out of your way to maintain good cache locality because you give up control over memory layout for automatic memory management.

There is a shadowy cult in a hidden corner of the Java community, an heresy to many, only followed by a handful of obnoxious zealots inspired by the dark ages of Ada 83, C, or even assembly, who take pride in creating Java programs that only allocate a finite amount of objects regardless of how long you run them for, and to which the "new" keyword is a taboo which avoidable use is assimilated to blasphemy.

As a member of this sect, in a few cases of presenting some of our programs on some laptop, I've had dumbfounded observers looking around the laptop for the network cable linking it to the server they thought it must have been running on.