rubyprof.txt

Thread ID: 21277412
 %self  cumulative  total     self   children  calls self/call total/call  name
 46.34     4.06      8.72     4.06     4.66      501     0.01     0.02     Integer#upto
 23.89     6.16      2.09     2.09     0.00       61     0.03     0.03     Kernel.sleep
 15.12     7.48      1.33     1.33     0.00   250862     0.00     0.00     Fixnum#%
 14.13     8.72      1.24     1.24     0.00   250862     0.00     0.00     Fixnum#==
  0.18     8.74      0.02     0.02     0.00        1     0.02     0.02     Array#each_index
  0.17     8.75      6.64     0.01     6.63      500     0.00     0.01     Object#is_prime
  0.17     8.77      6.66     0.01     6.64        1     0.01     6.66     Array#select
  0.00     8.77      0.00     0.00     0.00      501     0.00     0.00     Fixnum#-
  0.00     8.77      0.00     0.00     0.00        1     0.00     0.00     Array#first