jimschubert

if (!String.prototype.repeat) {
  // polyfill from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat
  String.prototype.repeat = function(count) {
    'use strict';
    if (this == null) {
      throw new TypeError('can\'t convert ' + this + ' to object');
    }
    var str = '' + this;
    count = +count;
    if (count != count) {

acolyer

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

• http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

• Does the design expect failures to happen regularly and handle them gracefully?
• Have we kept things as simple as possible?

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

maciej

#!/bin/bash
 
PROJECT_NAME="$1"
SCALA_VERSION="2.9.1"
SCALATEST_VERSION="1.6.1"
MOCKITO_VERSION="1.8.5"
 
mkdir $PROJECT_NAME
cd $PROJECT_NAME
 

maciej

find . -name ".svn" -exec rm -rf {} \;

maciej

# TODO replace the magic 57 with an actual match of the prefix
perl -pe 's/.{57}('.*')\);$/\1/' entries.txt | tr "[:lower:]" "[:upper:]" | sed "s/'//g" | sed -E 's/([^A-Z])+/_/g' | perl -e '$i = 1; while (<>) {chomp; printf("%s(\"%04d\"),\n", $_, $i); $i = $i + 1}'

maciej

#!/usr/bin/env bash

# Author: Maciej Bilas (@maciejb)

# Based on http://david-burger.blogspot.com/2010/01/truncate-all-tables-in-mysql-database_31.html
# https://gist.github.com/290596

usage() {
  echo "\
Usage: $0 -u username -d database [-h host] [-o port)] \\