gistfile1.rb

require 'benchmark'

ARRAY = (0..1000).to_a

N = 100000

Benchmark.bmbm do |x|

  x.report('each') { N.times {
    array = [ ]
    ARRAY.each { |c| array << c }
  } }

  x.report('collect') { N.times {
    ARRAY.collect { |e| e}
  } }
  
  x.report('inject') { N.times {
    ARRAY.inject([]) { |a, e| a << e }
  } }
  
  
end

#               user     system      total        real
# each      1.150000   0.000000   1.150000 (  1.206118)
# collect   0.970000   0.000000   0.970000 (  1.041968)
# inject    1.460000   0.010000   1.470000 (  1.556421)