rbx_performance_degredation

tobi@speedy ~/github/rubykon $ ./benchmark/benchmark.sh benchmark/full_playout.rb && ./benchmark/benchmark.sh benchmark/mcts_avg.rb 
Running rbx-2.5.8
Using /home/tobi/.rvm/gems/rbx-2.5.8
rubinius 2.5.8 (2.1.0 bef51ae3 2015-07-14 3.5.2 JI) [x86_64-linux-gnu]
Warming up --------------------------------------
19x19 full playout (+ score)
                         8.000  i/100ms
Calculating -------------------------------------
19x19 full playout (+ score)
                         85.969  (± 3.5%) i/s -      2.576k


Running rbx-3.69
Using /home/tobi/.rvm/gems/rbx-3.69
rubinius 3.69 (2.3.1 a57071c6 2016-11-17 3.8.0) [x86_64-linux-gnu]
Warming up --------------------------------------
19x19 full playout (+ score)
                         1.000  i/100ms
Calculating -------------------------------------
19x19 full playout (+ score)
                         17.298  (±11.6%) i/s -    511.000 


Running rbx-2.5.8
Using /home/tobi/.rvm/gems/rbx-2.5.8
rubinius 2.5.8 (2.1.0 bef51ae3 2015-07-14 3.5.2 JI) [x86_64-linux-gnu]
Running your benchmark...
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Finished warm up for 19x19 1_000 iterations, running the real bechmarks now
Finished measuring the run time for 19x19 1_000 iterations
Benchmarking finished, here are your reports...

Warm up results:
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19x19 1_000 iterations        5.17 i/min  11.59 s (avg)  (± 5.84%)

Runtime results:
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19x19 1_000 iterations        5.22 i/min  11.50 s (avg)  (± 1.74%)
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Running rbx-3.69
Using /home/tobi/.rvm/gems/rbx-3.69
rubinius 3.69 (2.3.1 a57071c6 2016-11-17 3.8.0) [x86_64-linux-gnu]
Running your benchmark...
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Finished warm up for 19x19 1_000 iterations, running the real bechmarks now
Finished measuring the run time for 19x19 1_000 iterations
Benchmarking finished, here are your reports...

Warm up results:
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19x19 1_000 iterations        0.99 i/min  60.61 s (avg)  (± 1.04%)

Runtime results:
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19x19 1_000 iterations        1.00 i/min  60.08 s (avg)  (± 0.13%)
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