ruby test

test.rb

require 'benchmark'

puts "You can also put forked code in a block pid: #{Process.pid}"
n = 100000
t = Benchmark.realtime do
  n.times do
    Time.now.utc.strftime('%Y-%m-%dT%H:%M:%S.%6N')
  end
end
puts "main total: #{t}, avg: #{t/n*1000}ms"
pid = fork do
  n = 100000
  t = Benchmark.realtime do
    n.times do
      Time.now.utc.strftime('%Y-%m-%dT%H:%M:%S.%6N')
    end
  end
  puts "fork total: #{t}, avg: #{t/n*1000}ms"
end
Process.wait(pid) if pid
puts "The parent process just skips over it: #{Process.pid}"