yield_vs_call.rb

# block: 0.052654
# yield: 0.015362

def with_block(&block)
  block.call
end

def with_yield
  yield
end

def measure(name)
  start = Time.now
  yield
  finish = Time.now
  puts "#{name}: #{finish - start}"
end

measure "block" do
  sum = 0
  10000.times do
    with_block do
      sum = sum + 1
    end
  end
end

measure "yield" do
  sum = 0
  10000.times do
    with_yield do
      sum = sum + 1
    end
  end
end