chrismccord

Comparative Benchmark Numbers @ Rackspace

I've taken the benchmarks from Matthew Rothenberg's phoenix-showdown, updated Phoenix to 0.13.1 and ran the tests on the most powerful machines available at Rackspace.

Results

Framework	Throughput (req/s)	Latency (ms)	Consistency (σ ms)

chrismccord

Using OTP's observer (appmon replacement) remotely

$ ssh remote-host "epmd -names"
epmd: up and running on port 4369 with data:
name some_node at port 58769

Note the running on port for epmd itself and the port of the node you're interested in debugging. Reconnect to the remote host with these ports forwarded:

$ ssh -L 4369:localhost:4369 -L 58769:localhost:58769 remote-host

chrismccord

#!/bin/bash

# This script can be used in "run & hope" mode or you can use it as a recipe to
# do things manually - you probably want the latter if you really care about
# the data in your databases.
# Happy hacking
# /Eoin/

# Tell bash to stop if something goes wrong
set -e

chrismccord

    broadcast! socket, "insert_img", %{
      url: url,
      start: params["start"],
      end: params["end"]
    }

chrismccord

defmodule MyApp.Web do

  def controller do 
    quote do
      use Phoenix.Controller
      use MyApp.CatchAllController
      ...
    end
  end
end

chrismccord

Deps

Bump your :phoenix and :phoenix_live_reload deps in mix.exs:

def deps do
  [...
   {:phoenix, "~> 0.17"},
   {:phoenix_live_reload, "~> 1.0"},
  ...]

chrismccord

Phoenix dep

Update your phoenix dep:

def deps do
 [...,
  {:phoenix, "~> 0.16"},
  ...]
end

chrismccord

Sockets and Channels

A new socket behaviour has been introduced to handle socket authentication in a single place, wire up default channel assigns, and disconnect a user's multiplex connection as needed.

First things first, create a UserSocket module in web/channels/user_socket.ex and move all your channel routes from web/route.ex to the user socket: (replace MyApp with your application module)

0.14.x - web/router.ex:

defmodule MyApp.Router do
   ...

chrismccord

First, bump your phoenix in mix.exs:

def deps do
  [{:phoenix, "~> 0.14"}, ...
end

phoenix_html

Update your phoenix_html version to 1.1.0 in mix.exs:

chrismccord

defmodule MyApp.Password do

  @moduledoc """
  Handles password authentication, encryption, and decryption
  """

  @doc """
  Encrypte the password String
  """
  def encrypt(raw_password) do