Alex ZhangHanDong

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Location: https://github.com/wsargent/docker-cheat-sheet

Hi there!

The docker cheat sheet has moved to a Github project under https://github.com/wsargent/docker-cheat-sheet.

Please click on the link above to go to the cheat sheet.

This is a proof-of-concept of a couple of concurrent data structures written in Ruby.

The implementations are heavily commented for those interested. There are benchmarks (with results) included below. The results are interesting, but, as always, take with a grain of salt.

Data structures

AtomicLinkedQueue is a lock-free queue, built on atomic CAS operations.

	source 'https://rubygems.org'

	gem 'rake'
	gem 'lotus-router'
	gem 'lotus-controller'
	gem 'lotus-view'

	group :test do
	gem 'rspec'
	gem 'capybara'

	# Simple Recommendation Engine in Ruby
	# Visit: http://otobrglez.opalab.com
	# Author: Oto Brglez <[email protected]>

	class Book < Struct.new(:title)

	def words
	@words \|\|= self.title.gsub(/[a-zA-Z]{3,}/).map(&:downcase).uniq.sort
	end

	class GroupersController < ApplicationController::Base
	def create
	@grouper = Grouper.new(leader: current_member)

	if @grouper.save
	confirm_grouper_via_emails(@grouper)
	enqueue_bar_assignment(@grouper)

	redirect_to home_path
	else

	<!DOCTYPE html>
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf8">
	<title>Float Label Pattern</title>
	<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
	<style type="text/css" media="screen">
	.row {
	/position: relative;/
	padding-top: 24px;

	// --- Compiling ---
	$ wget http://download.redis.io/releases/redis-2.8.3.tar.gz
	$ tar xzvf redis-2.8.3.tar.gz
	$ cd redis-2.8.3
	$ make
	$ make install

	// --- or using yum ---
	$ rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
	$ rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm

	require "thread"

	class BoundedQueue
	def initialize(max_size = :infinite)
	@lock = Mutex.new
	@items = []
	@item_available = ConditionVariable.new
	@max_size = max_size
	@space_available = ConditionVariable.new
	end

	require 'celluloid/autostart'

	class Cook
	include Celluloid

	def produce(manager)
	manager.async.inform("produced")
	end
	end

	#!/usr/bin/env bash

	# Pre-requisites
	sudo apt-get -y update
	sudo apt-get --no-install-recommends -y install build-essential openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev libgdbm-dev ncurses-dev automake libtool bison subversion pkg-config libffi-dev vim

	# Download and compile Ruby 2.0.0-p0
	cd /tmp
	wget ftp://ftp.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p0.tar.gz
	tar -xvzf ruby-2.0.0-p0.tar.gz