Christoph Berger christophberger

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

	// You don't want to serve HTTPS supporting for SSL3.0 any longer, see:
	// http://googleonlinesecurity.blogspot.de/2014/10/this-poodle-bites-exploiting-ssl-30.html
	import (
	"crypto/tls"
	"net/http"
	)

	// This code supports SSL3.0, TLS1.0, TLS1.1 and TLS1.2
	// Chances are you currently do this but want to stop due to the POODLE
	err := http.ListenAndServeTLS(addr, "crtfile", "keyfile", handler)

	/**
	* K.jpg's OpenSimplex 2, smooth variant ("SuperSimplex")
	*
	* More language ports, as well as legacy 2014 OpenSimplex, can be found here:
	* https://github.com/KdotJPG/OpenSimplex2
	*/

	public class OpenSimplex2S {

	private static final long PRIME_X = 0x5205402B9270C86FL;