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Bug #11901 » openstruct-regression-benchmark.rb

Benchmark to compare 2.2.4 versus 2.3.0 - amcaplan (Ariel Caplan), 12/27/2015 03:35 PM

 
require 'ostruct'
require 'benchmark/ips'

o = OpenStruct.new(foo: :bar)
o2 = OpenStruct.new
o2.foo = :bar

Benchmark.ips do |x|
x.report('assigned on initialization') do
o.foo
end

x.report('assigned after initialization') do
o2.foo
end

x.compare!
end

__END__

Run on Ruby 2.2.4:

Calculating -------------------------------------
assigned on initialization
133.904k i/100ms
assigned after initialization
133.563k i/100ms
-------------------------------------------------
assigned on initialization
5.374M (± 1.7%) i/s - 26.915M
assigned after initialization
5.290M (± 7.1%) i/s - 26.312M

Comparison:
assigned on initialization: 5374479.2 i/s
assigned after initialization: 5290495.7 i/s - 1.02x slower


Run on Ruby 2.3.0:

Calculating -------------------------------------
assigned on initialization
55.384k i/100ms
assigned after initialization
140.013k i/100ms
-------------------------------------------------
assigned on initialization
850.862k (± 1.8%) i/s - 4.265M
assigned after initialization
6.445M (± 1.9%) i/s - 32.343M

Comparison:
assigned after initialization: 6445171.0 i/s
assigned on initialization: 850862.4 i/s - 7.57x slower
    (1-1/1)