Joshua Hansen joshes

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.

In jurisdictions that recognize copyright laws, the author or authors of this software dedicate any and all copyright interest in the software to the public domain. We make this dedication for the benefit

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

	provider "aws" {
	region = "${var.region}"
	}
	### VPC

	# Fetch AZs in the current region
	data "aws_availability_zones" "available" {}

	resource "aws_vpc" "datastore" {
	cidr_block = "172.17.0.0/16"

	#!/bin/bash
	# Run as root

	if [ "$#" -ne 1 ];
	then
	echo "Usage: <script> <username>"
	exit 1
	fi
	USER=$1
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