Hi there!
The docker cheat sheet has moved to a Github project under https://github.com/wsargent/docker-cheat-sheet.
Please click on the link above to go to the cheat sheet.
# -*- mode: ruby -*- | |
# vi: set ft=ruby : | |
# Vagrantfile API/syntax version. Don't touch unless you know what you're doing! | |
VAGRANTFILE_API_VERSION = "2" | |
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config| | |
config.vm.box = "precise64" | |
config.vm.box_url = "http://files.vagrantup.com/precise64.box" | |
config.vm.network :private_network, ip: "192.168.99.99" |
#!/bin/bash | |
# dedupe-cacerts.sh | |
# | |
# De-duplicates a certificate authority bundle, such as cacerts.pem | |
# or ca-bundle.crt. This will emit CA certificates in the order they | |
# appeared, annotating them with full info on each certificate, | |
# omitting any duplicate certificates. | |
# | |
# Usage: | |
# |
#!/bin/bash | |
if [ $# -ne 3 ] | |
then | |
echo "Delete keys from Redis matching a pattern using SCAN & DEL" | |
echo "Usage: $0 <host> <port> <pattern>" | |
exit 1 | |
fi | |
cursor=-1 |
# These are very quick & dirty notes on getting Icinga installed on Centos 6.5 via RPMs, | |
# as most documentation seems to be based around source installation. It's mostly recovered from | |
# my history as I worked it out, so no guarantees are offered. | |
# Make EPEL available | |
sudo rpm -Uvh http://mirror.bytemark.co.uk/fedora/epel/6/i386/epel-release-6-8.noarch.rpm | |
# Install HTTPd | |
sudo yum install httpd | |
sudo service https start |
Hi there!
The docker cheat sheet has moved to a Github project under https://github.com/wsargent/docker-cheat-sheet.
Please click on the link above to go to the cheat sheet.
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 |
################################## | |
# MIT LICENSE | |
# Copyright (C) 2012 Luke Bayes | |
# | |
# Permission is hereby granted, free of charge, to any person obtaining a copy | |
# of this software and associated documentation files (the "Software"), to deal | |
# in the Software without restriction, including without limitation the rights | |
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
# copies of the Software, and to permit persons to whom the Software is | |
# furnished to do so, subject to the following conditions: |
################################## | |
# MIT LICENSE | |
# Copyright (C) 2012 Luke Bayes | |
# | |
# Permission is hereby granted, free of charge, to any person obtaining a copy | |
# of this software and associated documentation files (the "Software"), to deal | |
# in the Software without restriction, including without limitation the rights | |
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
# copies of the Software, and to permit persons to whom the Software is | |
# furnished to do so, subject to the following conditions: |