Michael de Silva bsodmike

ruby-1.9.3-p385 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p385 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

Zero downtime deploys with unicorn + nginx + runit + rvm + chef

Below are the actual files we use in one of our latest production applications at Agora Games to achieve zero downtime deploys with unicorn. You've probably already read the GitHub blog post on Unicorn and would like to try zero downtime deploys for your application. I hope these files and notes help. I am happy to update these files or these notes if there are comments/questions. YMMV (of course).

Other application notes:

Our application uses MongoDB, so we don't have database migrations to worry about as with MySQL or postgresql. That does not mean that we won't have to worry about issues with the database with indexes being built in MongoDB or what have you.
We use capistrano for deployment.

Salient points for each file:

This is a brain dump of my experience trying to get something going with Ember.js. My goal was to get to know the ins and outs of the framework by completing a pretty well defined task that I had lots of domain knowledge about. In this case reproducing a simple Yammer feed. As of this time, I have not been able to complete that task. So this is a subjective rundown of the things I think make it difficult to get a handle on Ember. NOTE: My comments are addressing the Ember team and giving suggestions on what they could do to improve the situation.

App setup

The new guides have pretty good explanation of the various parts of the framework; routers, models, templates, views. But it's not clear how they all get strapped together to make something that works. There are snippets of examples all over the place like:

App.Router.map(function() {
  match('/home').to('home');
});

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
H: preserves hard-links
A: preserves ACLs

	class MainSiteDomain
	def self.matches?(request)
	if request.host == DOMAIN
	true
	else
	# custom domain
	false
	end
	end
	end

	#!/bin/bash
	# hosted at https://gist.github.com/Mark-Booth/5058384
	# forked from https://gist.github.com/lth2h/4177524 @ ae184f1 by mark.booth
	# forked from https://gist.github.com/jehiah/1288596 @ e357c1e by lth2h
	# ideas from https://github.com/kortina/bakpak/blob/master/bin/git-branches-vs-origin-master

	# this prints out some branch status
	# (similar to the '... ahead' info you get from git status)

	# example:

	#!/bin/bash -e

	export RBENV_ROOT=/usr/local/rbenv
	export PATH=/usr/local/rbenv/shims:/usr/local/rbenv/bin:/usr/local/bin:"$PATH"

	APP="<%= @options[:app].application.name %>"
	APP_PATH="<%= @options[:app].path %>"
	RAILS_ENV="<%= @options[:rails_env] %>"
	UNICORN_CONFIG="/etc/unicorn/${APP}.rb"
	CUR_PID_FILE="${APP_PATH}/shared/pids/unicorn.pid"

	#!/usr/bin/env ruby
	Dir.chdir File.join(__FILE__, "../..")

	unless ENV['EDITOR']
	puts "No EDITOR found. Try:"
	puts "export EDITOR=vim"
	exit 1
	end

	unless ARGV.count == 2

	$.ajax({
	url: url,
	dataType: "jsonp",
	crossDomain: true,
	success: function (response) {
	//do something with the json data
	}
	});

	#!/usr/bin/env sh

	brew update
	brew install rbenv
	brew install ruby-build
	brew install openssl
	CONFIGURE_OPTS=--with-openssl-dir=`brew --prefix openssl` rbenv install 2.0.0-preview1