Symbol.to_proc vs. regular block with arguments

sym_to_proc_vs_regular_block_with_arguments.rb

require "benchmark"

n = 1_000_000
Benchmark.bm do |x|
  x.report("symbol to proc         ") { Array.new(n, "45").map(&:to_i) }
  x.report("regular block with args") { Array.new(n, "45").map {|i| i.to_i} }
end



__END__

Using /Users/deepthawtz/.rvm/gems/ree-1.8.7-2011.03
                             user     system      total        real
symbol to proc           2.500000   0.010000   2.510000 (  2.517850)
regular block with args  0.330000   0.000000   0.330000 (  0.333694)


Using /Users/deepthawtz/.rvm/gems/ruby-1.9.2-p180
                             user     system      total        real
symbol to proc           0.170000   0.010000   0.180000 (  0.172500)
regular block with args  0.210000   0.000000   0.210000 (  0.220909)