Created
July 9, 2012 18:28
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Benchmark for Class method vs. instance method
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# The verdict: Doesn't matter which one. | |
class MethodTesterObject | |
class << self | |
def perform(instances) | |
instances.each { |obj| obj.action } | |
end | |
end | |
attr_accessor :value | |
def initialize | |
self.value = rand(36**8).to_s(36) | |
end | |
def perform | |
self.action | |
end | |
def action | |
1000.times { self.value * 100 } | |
end | |
end | |
class MethodTester | |
def self.run | |
instances = [] | |
1000.times { instances.push MethodTesterObject.new } | |
puts "Running instance method." | |
puts Benchmark.measure { instances.each { |i| i.perform } } | |
puts "Running class method." | |
puts Benchmark.measure { MethodTesterObject.perform(instances) } | |
end | |
end |
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1.9.3p0 :099 > MethodTester.run | |
Running instance method. | |
1.210000 0.180000 1.390000 ( 1.385852) | |
Running class method. | |
1.200000 0.160000 1.360000 ( 1.358509) | |
=> nil | |
1.9.3p0 :100 > MethodTester.run | |
Running instance method. | |
1.150000 0.140000 1.290000 ( 1.287323) | |
Running class method. | |
1.140000 0.140000 1.280000 ( 1.282318) | |
=> nil | |
1.9.3p0 :101 > MethodTester.run | |
Running instance method. | |
1.150000 0.140000 1.290000 ( 1.287659) | |
Running class method. | |
1.170000 0.150000 1.320000 ( 1.316425) | |
=> nil |
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