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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

	#
	# https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
	# based on the RSnake original http://ha.ckers.org/xss.html
	# Retrieved on 2013-11-20
	# Much of this wildly obsolete
	#

	# XSS Locator 2
	'';!--"<XSS>=&{()}

	var redis = require("redis")
	, subscriber = redis.createClient()
	, publisher = redis.createClient();

	subscriber.on("message", function(channel, message) {
	console.log("Message '" + message + "' on channel '" + channel + "' arrived!")
	});

	subscriber.subscribe("test");

	#
	# Sample nginx.conf optimized for EC2 c1.medium to xlarge instances.
	# Also look at the haproxy.conf file for how the backend is balanced.
	#

	user "nginx" "nginx";
	worker_processes 10;

	error_log /var/log/nginx_error.log info;

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048