msh2050

wujiang@jiang-docker:~$ ruby fib.rb 
Warming up --------------------------------------
iterate adding 100000
                         1.000  i/100ms
fast doubling 100000   168.000  i/100ms
matrix multiplying 100000
                        37.000  i/100ms
Calculating -------------------------------------
iterate adding 100000
                          4.113  (± 0.0%) i/s -     21.000  in   5.107523s