jstorimer

require 'benchmark'
require 'thread'
require 'disruptor'
require_relative 'atomic_linked_queue'

$thread_count = 50
$iterations = 10

Thread.abort_on_exception = true

jstorimer

array = Array.new

trap(:INT) do
  p array.size
  exit
end

Thread.new do
  loop do
    array << 2

jstorimer

~/projects/shopify > cap staging deploy
  * 2012-11-19 22:55:20 executing `staging'
  * 2012-11-19 22:55:20 executing `set_staging_servers'
  * 2012-11-19 22:55:20 executing `deploy'
    triggering before callbacks for `deploy'
  * 2012-11-19 22:55:20 executing `deploy:lock'
    servers: ["app1.core.staging.ec2.shopify.com"]
 ** sftp upload #<StringIO:0x007fe0c24fe2f0> -> /u/apps/shopify/shared/system/lock.txt
    [app1.core.staging.ec2.shopify.com] /u/apps/shopify/shared/system/lock.txt
    [app1.core.staging.ec2.shopify.com] done

jstorimer

class Foo
  include Module.new {
    def this_works
    end
  }

  include Module.new do
    def this_doesnt_work
    end
  end

jstorimer

class Foo
  include Module.new {
    def this_works
    end
  }

  include Module.new do
    def this_doesnt_work
    end
  end

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module Kernel
  def system(*args)

    rd, wr = IO.pipe

    # Create a new subprocess that will just exec the requested program.
    pid = fork do
      # The sub-process closes its copy of the reading end of the pipe
      # because it only needs to write.
      rd.close

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Rehearsal -------------------------------------------------
string interp   0.200000   0.000000   0.200000 (  0.202780)
array join      0.520000   0.020000   0.540000 (  0.540294)
---------------------------------------- total: 0.740000sec

                    user     system      total        real
string interp   0.210000   0.000000   0.210000 (  0.216187)
array join      0.520000   0.000000   0.520000 (  0.518884)

jstorimer

Jesse Storimer is the author of <a href="http://workingwithunixprocesses.com">Working With Unix Processes</a> and currently works at <a href="http://shopify.com">Shopify</a>. You can find him online as @jstorimer on Twitter/Github.</p>

jstorimer

RocketSocket

This library was created out of my frustrations working with the Ruby's built-in Socket classes when writing Working With Sockets. It provides two functions: 1) A better way of building sockets with the common options that are more configurable/portable, and 2) A built-in way of framing messages in an safe and efficient manner. Nothing fancy.

RocketSocket::Build

socket = RocketSocket::Build.host('0.0.0.0').port(8080).ssl.read_timeout(60).write_timeout(10).listen(512).tcp
socket.write_timeout #=> 10

jstorimer

require 'socket'

# Ruby 1.8
Process.getrlimit(Process::RLIMIT_CORE)
Process.getrlimit(Process::RLIMIT_NOFILE)

# Ruby 1.9
Process.getrlimit(:CORE)
Process.getrlimit(:NOFILE)