From: Robert Dober <robert.dober@...>
Date: 2006-03-29T20:52:22+09:00
Subject: Re: strings and ruby style?

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And the winner is....

-----------------------------------8<--------------------------------------

626/126 > cat stringperf.rb ; ruby stringperf.rb
#!/usr/bin/env ruby
require 'benchmark'

 n =3D 10000
Benchmark.bm do
        |bm|
        bm.report "String#+     " do
                n.times do
                    actual =3D ''
                    %w{alpha beta gamma soup}.each do
                        |x|
                        actual =3D actual + x
                    end
                end
        end # do

        bm.report "Interpolation" do
                n.times do
                    %w{alpha beta gamma soup}.each do
                        |x|
                        actual =3D "#{actual}#{x}"
                    end
                end
        end # do

        bm.report "Format       " do
                n.times do
                    %w{alpha beta gamma soup}.each do
                        |x|
                        actual =3D "%s%s" % [actual, x]
                    end
                end
        end
 end # do


      user     system      total        real
String#+       0.090000   0.000000   0.090000 (  0.109451)
Interpolation  0.150000   0.000000   0.150000 (  0.153926)
Format         0.210000   0.000000   0.210000 (  0.226805)
-----------------------------------8<--------------------------------------
Robert

--
Deux choses sont infinies : l'univers et la b=EAtise humaine ; en ce qui
concerne l'univers, je n'en ai pas acquis la certitude absolue.

- Albert Einstein

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