A quick example of multithreading

Threading example

require 'benchmark'

class CottonThread
  attr_reader :threads, :procs

  def initialize
    @threads, @procs = [], []
  end

  def sow(proc)
    @procs << proc
  end

  def reap
    @procs.each { |p| @threads << Thread.new{p.call} }
    @threads.each { |t| t.join }
  end
end

c = CottonThread.new
10.times { c.sow -> { 3.times { sleep 1 } } }

puts "Procs: #{c.procs.count}"

Benchmark.bm(7) do |bm|
  bm.report { c.reap }
end