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

koshigoe

#!/bin/sh

# This program has two feature.
#
# 1. Create a disk image on RAM.
# 2. Mount that disk image.
#
# Usage:
#   $0 <dir> <size>
#

jexchan

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

piscisaureus

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

erikh

#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#

jelbourn

/**
 * Example of using an angular provider to build an api service.
 * @author Jeremy Elbourn (@jelbourn)
 */

/** Namespace for the application. */
var app = {};

/******************************************************************************/

Huluk

If you want your terminal vim to open files you double click, follow the following steps (MacOS only):
 
1. Open Automator
2. Select Application
3. Copy the attached file
4. Save and set as default for opening files

Multiple files are opened in vim tabs.
If there is already a vim instance running, files are opened in it.

avalanche123

:+1:
:-1:
:airplane:
:art:
:bear:
:beer:
:bike:
:bomb:
:book:
:bulb:

mythz

JS Conf slides - 2011

Track A

• Bytes and Blobs by David Flanagan
• Conference Wifi Redux by Malte Ubi
• Sashimi - https://github.com/cramforce/Sashimi
• Run Your JS everywhere with Jellyfish by Adam Christian - http://jelly.io Project
• Fighting Crime and Kicking Apps with Batman.js by Nick Small
• Hello Jo by Dave Balmer - Project - http://joapp.com