jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

cchandler

#Colo Server costs

set ServerTypes;
set InstanceTypes;

param CoreDemand; #How many cores do we need for a workload
param OurMoney; #The maximum upper-bound of what we're willing to spend
param ColoCostPerU; #How much are we paying per U of colocation
param Months; # How many months do we know we need this hardware

DTrejo

// Scraping Made Easy with jQuery and SelectorGadget 
// (http://blog.dtrejo.com/scraping-made-easy-with-jquery-and-selectorga)
// by David Trejo
// 
// Install node.js and npm:
//    http://joyeur.com/2010/12/10/installing-node-and-npm/
// Then run
//    npm install jsdom jquery http-agent
//    node numresults.js
// 

alex

import traceback


class WebApp(object):
    def __init__(self, obj):
        self.obj = obj

    def __call__(self, environ, start_response):
        try:
            path = filter(bool, environ["PATH_INFO"].split("/"))

visnup

#!/usr/bin/env node

var http = require('http')
  , webapp = require('webapp');

http.createServer(webapp.bind([])).listen(8000);
//                ^^^^^^^^^^^^^^^
//                       |            (x)
//                  ROFLSCALE DEQUE ---/

igrigorik

require 'rubygems'
require 'rack'

class Object
  def webapp
    class << self
       define_method :call do |env|
         func, *attrs = env['PATH_INFO'].split('/').reject(&:empty?)
         [200, {}, send(func, *attrs)]
       end

guenter

require 'fileutils'

start_time = Time.now


SOURCE_DB = {
  :name => 'db_name',
  :user => 'db_user',
  :password => 'db_pass',
  :host => 'localhost'

isaacs

echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl https://www.npmjs.org/install.sh | sh

nstielau

load 'deploy' if respond_to?(:namespace) # cap2 differentiator

##################################
# Edit these
set :application, "example_node_app"
set :node_file, "hello_world.js"
set :host, "ec2-174-129-114-66.compute-1.amazonaws.com"
ssh_options[:keys] = [File.join(ENV["HOME"], ".ec2", "default.pem")]
set :repository, "git://gist.github.com/479007.git"
set :branch, "master"

cwsaylor

# Variation on Hashrocket's script for managing the git process
# as documented here: http://reinh.com/blog/2008/08/27/hack-and-and-ship.html
# Create shell scripts out of each of these, put them in your path (~/bin for example)
# chmod 755 them and use like this:
#
# This version of hack is totally different than Hackrockets. I feel that hack implies 
# that you are getting started, not finishing up. sink is Hashrockets hack.
#
# $ hack branch_name
# Test and Implement until done