--test--                MRI    JRuby
app_answer              0.590   1.440
app_fib                 7.087   5.595
app_mandelbrot          2.330   10.245
app_strconcat           1.828   2.392
app_tak                 9.678   5.692
app_tarai               7.991   5.049
loop_times              5.463   3.194
loop_whileloop          9.896   5.595
loop_whileloop2         1.986   2.341
so_ackermann            13.543  11.056
so_concatenate          2.044   2.695
so_lists                1.239   2.540
so_matrix               2.263   2.691
so_nested_loop          5.587   4.653
so_random               2.151   3.594
so_sieve                0.736   2.090
vm1_block               23.541  12.399
vm1_const               16.880  9.695
vm1_length              21.203  10.595
vm1_simplereturn        21.278  9.404
vm2_array               6.051   3.490
vm2_method              12.947  7.796
vm2_regexp              4.486   7.200
vm2_unif1               3.895   3.405
vm3_thread_create_join  0.018   1.837