gistfile1.txt

# MRI

Rehearsal -----------------------------------------------------------
symbol w/ interpolation   1.740000   0.010000   1.750000 (  1.745346)
string w/ interpolation   1.350000   0.000000   1.350000 (  1.353597)
symbol                    0.200000   0.000000   0.200000 (  0.207208)
string                    0.440000   0.000000   0.440000 (  0.439890)
-------------------------------------------------- total: 3.740000sec

                              user     system      total        real
symbol w/ interpolation   1.870000   0.010000   1.880000 (  1.877624)
string w/ interpolation   1.300000   0.000000   1.300000 (  1.309572)
symbol                    0.210000   0.000000   0.210000 (  0.205034)
string                    0.470000   0.000000   0.470000 (  0.476345)

gc-begone!

Rehearsal --------------------------------------------------------------------------
symbol w/ interpolation                  1.770000   0.010000   1.780000 (  1.774826)
symbol w/ interpolation and gc-begone!   0.590000   0.000000   0.590000 (  0.586810)
string w/ interpolation                  1.290000   0.000000   1.290000 (  1.298141)
symbol                                   0.210000   0.000000   0.210000 (  0.206038)
string                                   0.430000   0.000000   0.430000 (  0.434846)
----------------------------------------------------------------- total: 4.300000sec

                                             user     system      total        real
symbol w/ interpolation                  1.740000   0.010000   1.750000 (  1.739623)
symbol w/ interpolation and gc-begone!   0.600000   0.000000   0.600000 (  0.604846)
string w/ interpolation                  1.280000   0.000000   1.280000 (  1.285195)
symbol                                   0.230000   0.000000   0.230000 (  0.224491)
string                                   0.490000   0.000000   0.490000 (  0.496763)

gistfile2.txt

# Rubinius

Rehearsal --------------------------------------------------------------------------
symbol w/ interpolation                  0.763277   0.005899   0.769176 (  0.662442)
symbol w/ interpolation and gc-begone!   0.137618   0.000262   0.137880 (  0.132575)
string w/ interpolation                  0.453309   0.001676   0.454985 (  0.448123)
symbol                                   0.039019   0.000073   0.039092 (  0.036853)
string                                   0.140208   0.000443   0.140651 (  0.140450)
----------------------------------------------------------------- total: 1.541784sec

                                             user     system      total        real
symbol w/ interpolation                  0.444339   0.001104   0.445443 (  0.446296)
symbol w/ interpolation and gc-begone!   0.129782   0.000188   0.129970 (  0.130453)
string w/ interpolation                  0.361510   0.000935   0.362445 (  0.363314)
symbol                                   0.035721   0.000062   0.035783 (  0.035923)
string                                   0.132462   0.000352   0.132814 (  0.133227)

stupid_bench.rb

require 'benchmark'

num1  = "num1"
num2  = "num2"
iters = 1000000

Benchmark.bmbm do |x|
  x.report('symbol w/ interpolation') do
    iters.times.each do
      :"A#{num1}:C#{num2}"
    end
  end

  x.report('symbol w/ interpolation and gc-begone!') do
    anti_gc = "A#{num1}:C#{num2}"
    iters.times.each do
      anti_gc.to_sym
    end
  end

  x.report('string w/ interpolation') do
    iters.times.each do
      "A#{num1}:C#{num2}"
    end
  end

  x.report('symbol') do
    iters.times.each do
      :"Hi-There"
    end
  end

  x.report('string') do
    iters.times.each do
      "Hi-There"
    end
  end
end