bench.rb

# GistID: 5582062
require "diffbench"
load 'output_safety.rb'

N = 10000
b = ActiveSupport::SafeBuffer.new("hello world")
DiffBench.bm do
  report "capitalize in safe buffer" do
    N.times do
      b.capitalize
    end
  end
end


#    > git checkout  069ea45; diffbench bench.rb; diffbench bench.rb;diffbench bench.rb;diffbench bench.rb;diffbench bench.rb;diffbench bench.rb;diffbench bench.rb;
#
#    Running benchmark with current working tree
#    Checkout HEAD^
#    Running benchmark with HEAD^
#    Checkout to previous HEAD again
#    
#                        user     system      total        real
#    ----------------------------------capitalize in safe buffer
#    After patch:    0.010000   0.000000   0.010000 (  0.009733)
#    Before patch:   0.010000   0.000000   0.010000 (  0.007702)
#    Improvement: -26%
#    
#    Running benchmark with current working tree
#    Checkout HEAD^
#    Running benchmark with HEAD^
#    Checkout to previous HEAD again
#    
#                        user     system      total        real
#    ----------------------------------capitalize in safe buffer
#    After patch:    0.010000   0.000000   0.010000 (  0.009768)
#    Before patch:   0.010000   0.000000   0.010000 (  0.007896)
#    Improvement: -24%
#    
#    Running benchmark with current working tree
#    Checkout HEAD^
#    Running benchmark with HEAD^
#    Checkout to previous HEAD again
#    
#                        user     system      total        real
#    ----------------------------------capitalize in safe buffer
#    After patch:    0.010000   0.000000   0.010000 (  0.009938)
#    Before patch:   0.010000   0.000000   0.010000 (  0.007768)
#    Improvement: -28%
#    
#    Running benchmark with current working tree
#    Checkout HEAD^
#    Running benchmark with HEAD^
#    Checkout to previous HEAD again
#    
#                        user     system      total        real
#    ----------------------------------capitalize in safe buffer
#    After patch:    0.010000   0.000000   0.010000 (  0.010001)
#    Before patch:   0.010000   0.000000   0.010000 (  0.007873)
#    Improvement: -27%
#    
#    Running benchmark with current working tree
#    Checkout HEAD^
#    Running benchmark with HEAD^
#    Checkout to previous HEAD again
#    
#                        user     system      total        real
#    ----------------------------------capitalize in safe buffer
#    After patch:    0.010000   0.000000   0.010000 (  0.009670)
#    Before patch:   0.010000   0.000000   0.010000 (  0.007800)
#    Improvement: -24%
#    
#    Running benchmark with current working tree
#    Checkout HEAD^
#    Running benchmark with HEAD^
#    Checkout to previous HEAD again
#    
#                        user     system      total        real
#    ----------------------------------capitalize in safe buffer
#    After patch:    0.010000   0.000000   0.010000 (  0.009949)
#    Before patch:   0.010000   0.000000   0.010000 (  0.007752)
#    Improvement: -28%