length         intrinsic(ops/ms)        no intrinsic(ops/ms)         intrinsic / no intrinsic
1              1726.896                 1703.273                     1.01
2              1636.914                 1415.119                     1.16
3              1230.228                 1207.127                     1.02
5              876.745                  801.108                      1.09
10             578.954                  322.385                      1.80
50             42.074                   16.600                       2.53
100            11.176                   4.230                        2.64
1000           0.115                    0.042                        2.74
2000           0.028                    0.011                        2.55
5000           0.004                    0.002                        2.00