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takai/1. uniq_bench.rb

Created April 26, 2012 20:44
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1. uniq_bench.rb
require 'benchmark'
require 'set'
source = 100000.times.map { rand(100) }
n = 100
Benchmark.bm(5) do |x|
x.report('uniq') do n.times { source.uniq } end
x.report('uniq!') do n.times { source.uniq! } end
x.report('set') do n.times { Set.new(source) } end
x.report('hash') do n.times { source.each_with_object(Hash.new) {|i, h| h[i] }.keys } end
end
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2. ruby 1.9.3p125
ruby 1.9.3p125 (2012-02-16 revision 34643) [x86_64-darwin11.3.0]
user system total real
uniq 0.770000 0.000000 0.770000 ( 0.777292)
uniq! 0.010000 0.000000 0.010000 ( 0.011109)
set 0.010000 0.000000 0.010000 ( 0.003713)
hash 0.000000 0.000000 0.000000 ( 0.001277)
Raw
3. jruby 1.6.7
jruby 1.6.7 (ruby-1.9.2-p312) (2012-02-22 3e82bc8) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_31) [darwin-x86_64-java]
user system total real
uniq 0.555000 0.000000 0.555000 ( 0.555000)
uniq! 0.015000 0.000000 0.015000 ( 0.015000)
set 0.208000 0.000000 0.208000 ( 0.208000)
hash 0.089000 0.000000 0.089000 ( 0.090000)
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