32-th Fibonacci number is 902291968
 Performance counter stats for 'bin/go-recursion.bin 32 256':

       4601.723955      task-clock (msec)         #    1.001 CPUs utilized          
               915      context-switches          #    0.199 K/sec                  
                25      cpu-migrations            #    0.005 K/sec                  
               222      page-faults               #    0.048 K/sec                  
    16,500,964,293      cycles                    #    3.586 GHz                      (83.29%)
     4,583,479,531      stalled-cycles-frontend   #   27.78% frontend cycles idle     (83.17%)
       525,213,923      stalled-cycles-backend    #    3.18% backend cycles idle      (66.74%)
    34,278,015,806      instructions              #    2.08  insn per cycle         
                                                  #    0.13  stalled cycles per insn  (83.41%)
     7,219,307,333      branches                  # 1568.827 M/sec                    (83.41%)
        46,607,787      branch-misses             #    0.65% of all branches          (83.38%)

       4.599133628 seconds time elapsed