meth_vs_proc.rb

gistfile1.txt

Calculating -------------------------------------
              method    56.995k i/100ms
                proc    49.213k i/100ms
            proc new    57.562k i/100ms
-------------------------------------------------
              method      1.797M (±10.7%) i/s -      8.891M
                proc      1.522M (± 8.3%) i/s -      7.579M
            proc new      1.867M (± 7.9%) i/s -      9.267M

Comparison:
            proc new:  1867458.0 i/s
              method:  1796674.5 i/s - 1.04x slower
                proc:  1521538.1 i/s - 1.23x slower

meth_vs_proc.rb

require 'benchmark/ips'

module Fns
  def self.upcase(input)
    input.upcase
  end
end

meth_obj = Fns.method(:upcase)
proc_obj = Fns.method(:upcase).to_proc
proc_new = Proc.new { |foo| foo.upcase }

Benchmark.ips do |x|
  x.report('method') { meth_obj.call('foo') }
  x.report('proc') { proc_obj.call('foo') }
  x.report('proc new') { proc_new.call('foo') }
  x.compare!
end