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JonRowe/any_size_benchmark.rb

Created January 16, 2014 01:16
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TIL that `empty?` is still significantly faster than `any?` despite `any?` being lazy.
Raw
any_size_benchmark.rb
require 'benchmark'
array = 10000000.times.to_a
puts "Any"
puts Benchmark.measure { 1000.times { array.any? } }
puts "Empty"
puts Benchmark.measure { 1000.times { array.empty? } }
puts "Iterating over the entire collection"
puts Benchmark.measure { 1000.times { array.each {} } }
Raw
output.txt
Any
0.000000 0.000000 0.000000 ( 0.000303)
Empty
0.000000 0.000000 0.000000 ( 0.000076)
Iterating over the entire collection
467.250000 0.150000 467.400000 (468.296172)
@puyo
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puyo commented Jan 16, 2014

Is it the extra logic cruft around detecting no block was passed, and deciding what to do about it... ?

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