Counting 1 to 100m across various modes.

gistfile1.txt

system ~/projects/jruby $ jruby --disable-gems -Xir.unboxing=true -X+CIR -e "c = 0; while c < 10; c += 1; t = Time.now; i = 0; while i < 100_000_000; i += 1; end; puts Time.now - t; end"
0.775
0.782
0.777
0.772
0.767
0.778
0.757
0.761
0.781
0.768

system ~/projects/jruby $ jruby --disable-gems -Xir.unboxing=false -X+CIR -e "c = 0; while c < 10; c += 1; t = Time.now; i = 0; while i < 100_000_000; i += 1; end; puts Time.now - t; end"
1.846
1.674
1.688
1.69
1.81
1.803
1.793
2.035
1.815
1.804

system ~/projects/jruby $ jruby --disable-gems -X+C -e "c = 0; while c < 10; c += 1; t = Time.now; i = 0; while i < 100_000_000; i += 1; end; puts Time.now - t; end"
0.995
0.864
0.874
0.875
1.081
1.17
1.204
1.195
1.193
1.17

system ~/projects/jruby $ jruby --disable-gems -X-C -e "c = 0; while c < 10; c += 1; t = Time.now; i = 0; while i < 100_000_000; i += 1; end; puts Time.now - t; end"
3.263
3.048
3.359
3.486
3.494
3.493
3.524
3.456
3.487
3.516

system ~/projects/jruby $ jruby --disable-gems -X-CIR -e "c = 0; while c < 10; c += 1; t = Time.now; i = 0; while i < 100_000_000; i += 1; end; puts Time.now - t; end"
11.052
10.98
10.946
11.095
11.287
11.254
11.249
11.279
11.342
11.686