gistfile1.rb

require 'benchmark'

N      = 1000000
string = ''

Benchmark.bm(11) do |x|
  100.times do |digits|
    string << rand(10).to_s
    fixnum =  string.to_i
    symbol =  string.to_sym
    i      =  digits + 1

    x.report %Q!#{i} digits Fixnum#to_s! do
      (1..N).each { fixnum.to_s }
    end

    x.report %Q!#{i} digits "\#{Fixnum}"! do
      (1..N).each { "#{fixnum}" }
    end

    x.report %Q!#{i} digits Symbol#to_s! do
      (1..N).each { symbol.to_s }
    end

    x.report %Q!#{i} digits "\#{Symbol}"! do
      (1..N).each { "#{symbol}" }
    end

    x.report %Q!#{i} digits String#to_s! do
      (1..N).each { string.to_s }
    end

    x.report %Q!#{i} digits "\#{String}"! do
      (1..N).each { "#{string}" }
    end
  end
end