cpuConstant

I would expect the cpuConstant go lower as turbo kicks in. But my first run usually gives lower number (faster speed), and consequent executions typically but not always are longer/slower.

In either case it is a problem. Recall recently discussed ThreadDeath issue.

Do you relay highly on GC? I mean do you create objects in loops? If the speed gets slower, I can only guess that would be GC.

Kd-trees and HashMaps is fast and GC friendly IMO. Did u tried recalculate CPU constant?

You mean the robocode properties file says CPU constant = 6ms?

I did a bit of rounding but yes. Also, this is the number which I get if ask GUI to recalculate cpuConstant.

Robocode gives robots extra time at the beginning of a round. In addition, most of this time is probably taken away by one-time setup and initialization code, making your calculated CPU constant longer than it should be.

Ok. I see why skipped turn event is not fired. But the wildly fluctuating cpu constants is still under the question. The cpu constant calculation is done within one call: it just long loop with heavy math.

Unless GC kicks in at random I see no explanation for it. The problem that it probably does it during the round as well, since I see wildly fluctuating timing in my profiler.