require 'benchmark'

# Benchmarks for various symbol operations.
#
#                           user     system      total        real
# :a                    0.130000   0.000000   0.130000 (  0.133211)
# :a to_sym             0.210000   0.000000   0.210000 (  0.212942)
# :a to_s               0.540000   0.000000   0.540000 (  0.536892)
# :a..z to_s            0.530000   0.000000   0.530000 (  0.540183)
# {}[:sym]              0.320000   0.000000   0.320000 (  0.315051)
#
Benchmark.bm(20) do |x|

  n = 1000000
  a = "a"
  z = ('a'..'z').to_a.join

  a = a.to_sym
  x.report ":a" do
    n.times { a }
  end

  x.report ":a to_sym" do
    n.times { a.to_sym }
  end

  x.report ":a to_s" do
    n.times { a.to_s }
  end

  z = z.to_sym
  x.report ":a..z to_s" do
    n.times { z.to_s }
  end

  hash = {a => 1, z => 2}
  x.report "{}[:sym]" do
    n.times { hash[z] }
  end
end