Edwin Dalorzo edalorzo

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

	(defun dotspacemacs/user-config ()
	"Configuration function for user code.
	This function is called at the very end of Spacemacs initialization after
	layers configuration.
	This is the place where most of your configurations should be done. Unless it is
	explicitly specified that a variable should be set before a package is loaded,
	you should place your code here."
	(add-hook 'go-mode-hook (lambda() (setq go-tab-width 2)))
	)

	// Say we have a List of names and we would like to find all those names where "am" occurs:
	{
	// LINQ
	// string[] names = { "Sam", "Pamela", "Dave", "Pascal", "Erik" };
	// List<string> filteredNames = names.Where(c => c.Contains("am"))
	// .ToList();

	// Java Streams
	// String[] names = {"Sam","Pamela", "Dave", "Pascal", "Erik"};
	// List<String> filteredNames = stream(names)

	val wc = Wildcard
	val x = Variable "x"
	val y = Variable "y"
	val z = Variable "z"

	fun tpl vs = Tuple vs
	fun pair (a,b) = Tuple [a,b]
	fun tp ps = TupleP ps
	fun pp (a,b) = TupleP [a,b]

	[
	{
	"caption": "SublimeREPL: SML",
	"command": "run_existing_window_command", "args":
	{
	"id": "repl_sml",
	"file": "config/SML/Main.sublime-menu"
	}
	}
	]