Shielding Success Rates Mystery

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Return to Thread:Talk:XanderCat/Shielding Success Rates Mystery/reply (22).

Wow, ok.. So 4 threads was slightly worse overall, but 20 seasons is hardly enough to cover the margin of error. Now testing on Windows, and at 98 overall score after 8+ seasons. This is Oracle Java 7. Also interesting to note that the CPU constant was set to about 5 ms in Windows, vs 7 in Linux. Also this is all on Robocode 1.7.4.0, sorry about that, but I don't think it makes a difference.

Voidious18:24, 16 February 2013
 

Ok, still want to test on Ubuntu 64-bit and with the Oracle JVM on Linux, but here's a bunch of data for now.

config Virus Hydra Crusader Total
Linux/OJDK/1 thread 76.14 +- 8.29 95.93 +- 0.37 89.26 +- 5.17 87.11 +- 2.66
Linux/OJDK/4 threads 81.45 +- 7.6 82.77 +- 6.51 90.91 +- 5.14 85.04 +- 2.92
Windows/1 thread 98.89 +- 0.25 96.09 +- 0.33 98.67 +- 0.34 97.88 +- 0.17
Windows/2 threads 97.18 +- 1.91 96.31 +- 0.35 98.92 +- 0.3 97.47 +- 0.48
Windows/3 threads 95.4 +- 3.19 96.39 +- 0.23 88.88 +- 5.49 93.56 +- 1.55
Windows/4 threads 98.66 +- 0.31 92.2 +- 3.5 92.42 +- 4.31 94.43 +- 1.41

It's worth noting that I feel comfortable running my own benchmarks 6-threaded on this machine and I usually run 4 RoboRumble clients at a time.

Voidious19:33, 16 February 2013

Thank you, Voidious, for all the data. Don't forget to take a peak at skipped turns under Linux/OJDK. It gets printed to the game log, and you can also check what is printed in the SkippedTurns text file it writes to the data directory.

For now, I'm going with the assumption that I need to target reducing initialization overhead due to skipped turns. Once I have that done, I can prepare another version of XanderCat, which if I'm lucky you will be willing to run through your Linux/OJDK setup again to see how it changes things.

Skotty20:05, 16 February 2013