hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

angus-c

//usage
withAdvice.call(targetObject);

//mixin augments target object with around, before and after methods
//method is the base method, advice is the augmenting function
withAdvice: function() {
  ['before', 'after', 'around'].forEach(function(m) {
    this[m] = function(method, advice) {
      if (typeof this[method] == 'function') {
        return this[method] = fn[m](this[method], advice);

jimmynotjim

##Simply annoying Tweets

Annoyingly extended words (4+ of the same letter in a phrase): OOOOHHHHMMMMYYYYGGGGOOOODDDD

([a-z])/1{4}

Tweet w/ just a single hashtag: #omgthissucks

^ *#[^ ]+$

danparsons

How to stream the London 2012 Olympics

There have been several HOWTOs posted regarding streaming the 2012 Olympics using HTTP / SOCKS proxies via SSH and other similar methods. None of these actually work using the latest Flash on Mountain Lion (with Firefox, Chrome or Safari). Additionally, the third-party streaming sites don't provide BBC's amazing interface, which lets you quickly skip to individual competitors and events. However, setting up an OpenVPN server does work, with some tweaks. You'll get the exact same UX that people in England receive.

• Get a Linode VM in the UK. The 512MB server for $20 works just fine. (If you want to use my referral link, go for it: http://bit.ly/OuzdVe)

• Follow the standard OpenVPN installation documentation. (Basically, 'apt-get install openvpn' or 'yum install openvpn' and then follow these docs: http://openvpn.net/index.php/open-source/documentation/howto.html). For an OS X client, I prefer Viscosity: http://www.thesparklabs

zziuni

# source : http://code.google.com/p/natvpn/source/browse/trunk/stun_server_list
# A list of available STUN server.

stun.l.google.com:19302
stun1.l.google.com:19302
stun2.l.google.com:19302
stun3.l.google.com:19302
stun4.l.google.com:19302
stun01.sipphone.com
stun.ekiga.net

brianmario

Bars

PROTIP: Bars in Oregon have to serve food as long as they're serving alcohol. As a result, some of them have amazing food.

PROTIP: You can't buy alcohol (other than beer or wine) anywhere else but a state-controlled liquor store. Most of them are closed on Sundays and close around 7pm every other night of the week.

Southeast

• The Night Light - This was our favorite bar just before we moved to Italy. Right in the heart of the quiet Clinton district (where we were living at the time).
• The Doug Fir Lounge - I hate to use the word swanky again but that's the only way I can describe it. The entire place is built to look like a log cabin. Used to go here all the time. Pretty good bar. The restaurant is open until 3am (or at least was when I lived there) and has some DAMN good gastro pub style food. The halibut fish and chips and burger are insane. Funny enough, I saw the GitHub guys here (including maddox and Tek I think?) after

metaskills

MiniTest::Emoji::DEFAULT.merge! '.' => "\u{1f49A} ", 'F' => "\u{1f494} ", 'E' => "\u{1f480} ", 'S' => "\u{1f49B} "

benwaldie

-- Ask the user to select an app
set theApp to choose file of type "app" default location (path to applications folder)

-- Get the app name
tell application "System Events"
  set theAppName to name of theApp
	if theAppName ends with ".app" then set theAppName to text 1 thru -5 of theAppName
	
	-- Determine whether the app is a package, and notify the user if it's not
	set isPackage to (package folder of theApp)

chrishunt

#!/bin/sh
#.git/hooks/pre-commit

exec 1>&2

TODOS=$(git todo)

if [ ! -z "$TODOS" ]; then
  echo 'Aborting commit due to stuff TODO'
  echo $TODOS

mlanett

HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing