dctrwatson

#cloud-config

mounts:
 - [ ephemeral0, /var, ext4, "defaults,noatime", "0", "2" ]
 - [ swap, null ]

bootcmd:
 - mkdir -p /tmp/root
 - mount --bind / /tmp/root
 - rsync -aq /tmp/root/var/lib/cloud /var/lib/

philfreo

#!/usr/bin/env python

import time
import boto
import boto.ec2.elb
import boto.utils

from flask.ext.script import Manager

from closeio.main import setup_app

bentford

@interface AutoLayoutLabel : UILabel

@end

@implementation AutoLayoutLabel
{
    CGFloat overrideWidth;
}

- (id)init

danielpunkass

The enclosed config.xml file will instruct Jenkins to check out and build llvm + clang, archiving the resulting clang binary.

The configuration will build daily and will retain builds for 5 days.

To add it to your Jenkins install, just copy the config.xml file to e.g.:

jobs/Clang/config.xml

Then "reload configuration" in Jenkins, or stop and start Jenkins to reload it implicitly.

alexjs

#
# Slightly tighter CORS config for nginx
#
# A modification of https://gist.github.com/1064640/ to include a white-list of URLs
#
# Despite the W3C guidance suggesting that a list of origins can be passed as part of
# Access-Control-Allow-Origin headers, several browsers (well, at least Firefox) 
# don't seem to play nicely with this.
#

jayj

// --------------------------------------------------
// Flexbox LESS mixins
// The spec: http://www.w3.org/TR/css3-flexbox
// --------------------------------------------------

// Flexbox display
// flex or inline-flex
.flex-display(@display: flex) {
	display: ~"-webkit-@{display}";
	display: ~"-ms-@{display}box"; // IE10 uses -ms-flexbox

marktheunissen

This playbook has been removed as it is now very outdated.

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

nicklockwood

//
//  ARC Helper
//
//  Version 2.2
//
//  Created by Nick Lockwood on 05/01/2012.
//  Copyright 2012 Charcoal Design
//
//  Distributed under the permissive zlib license
//  Get the latest version from here:

jodell

#!/bin/bash
# http://archives.postgresql.org/pgsql-admin/2010-05/msg00285.php
# Output lines suitable for sysctl configuration based
# on total amount of RAM on the system.  The output
# will allow up to 50% of physical memory to be allocated
# into shared memory.

# On Linux, you can use it as follows (as root):
#
# ./shmsetup >> /etc/sysctl.conf