struct-member-benchmark2.rb

require 'benchmark'

class MemberClass
  def initialize(a, b, c, d, e, f, g)
    @a = a
    @b = b
    @c = c
    @d = d
    @e = e
    @f = f
    @g = g
  end
  attr_reader :a, :b, :c, :d, :e, :f, :g
end

StructClass = Struct.new(:a, :b, :c, :d, :e, :f, :g)

COUNT = 10000000

Benchmark.bmbm do |x|
  x.report("member") do
    m = MemberClass.new(0, 0, 0, 0, 0, 0, 0)
    COUNT.times do
      m.a + m.b + m.c + m.d + m.e + m.f + m.g
    end
  end

  x.report("struct") do
    m = StructClass.new(0, 0, 0, 0, 0, 0, 0)
    COUNT.times do
      m.a + m.b + m.c + m.d + m.e + m.f + m.g
    end
  end
end


# Rehearsal ------------------------------------------
# member   1.430000   0.000000   1.430000 (  1.433829)
# struct   1.630000   0.000000   1.630000 (  1.624923)
# --------------------------------- total: 3.060000sec
# 
#              user     system      total        real
# member   1.390000   0.000000   1.390000 (  1.390638)
# struct   1.740000   0.000000   1.740000 (  1.730032)