eddmann

wifi-menu
ping www.google.com

# setup disk partitions
cfdisk.

# format disk partitions
lsblk /dev/sda
mkfs.ext4 /dev/sda1
mkfs.ext4 /dev/sda2

oroce

user www-data;
worker_processes 1;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
}

http {
    sendfile on;

tmatilai

# URI of the local (caching) HTTP proxy
LOCAL_HTTP_PROXY = 'http://192.168.33.200:8123'

# Configures vagrant-cachier and vagrant-proxyconf.
# Should be called only on "local machine" providers.
def configure_caching(config)
  if Vagrant.has_plugin?('vagrant-cachier')
    config.cache.enable_nfs = true
    config.cache.enable :gem
    config.cache.enable :npm

guenter

import mesosphere.mesos.util.FrameworkInfo
import org.apache.mesos.MesosSchedulerDriver


/**
 * @author Tobi Knaup
 */

object Main extends App {

cosimo

#!/bin/bash
#
# Example of how to parse short/long options with 'getopt'
#

OPTS=`getopt -o vhns: --long verbose,dry-run,help,stack-size: -n 'parse-options' -- "$@"`

if [ $? != 0 ] ; then echo "Failed parsing options." >&2 ; exit 1 ; fi

echo "$OPTS"

wolfg1969

# tunnel - secure tunnel to my vps

description     "ssh tunnel"
 
start on (local-filesystems and network-device-up IFACE!=lo)
stop on runlevel [!12345]
 
respawn
respawn limit 5 60 # respawn max 5 times in 60 seconds
umask 022

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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

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

dlutzy

# -*- mode: ruby -*-
# vi: set ft=ruby : 
# David Lutz's Multi VM Vagrantfile
# inspired from Mark Barger's https://gist.github.com/2404910

boxes = [
  { :name => :web,    :role => 'web_dev',     :ip => '192.168.33.1', :ssh_port => 2201, :http_fwd => 9980, :cpus =>4, :shares => true },
  { :name => :data,        :role => 'data_dev',         :ip => '192.168.33.2', :ssh_port => 2202, :mysql_fwd => 9936, :cpus =>4 },
  { :name => :railsapp,    :role => 'railsapp_dev',     :ip => '192.168.33.3', :ssh_port => 2203, :http_fwd => 9990, :cpus =>1}
]