Frederick Wagner doctaphred

My thoughts on MessagePack

Hi. My name is Sadayuki "Sada" Furuhashi. I am the author of the MessagePack serialization format as well as its implementation in C/C++/Ruby.

Recently, MessagePack made it to the front page of Hacker News with this blog entry by Olaf, the creator of the Facebook game ZeroPilot. In the comment thread, there were several criticisms for the blog post as well as MessagePack itself, and I thought this was a good opportunity for me to address the questions and share my thoughts.

My high-level response to the comments

To the best of my understanding, roughly speaking, the criticisms fell into the following two categories.

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

	# found this from Armin R. on Twitter, what a beautiful gem ;)

	import ctypes
	from types import DictProxyType, MethodType

	# figure out side of _Py_ssize_t
	if hasattr(ctypes.pythonapi, 'Py_InitModule4_64'):
	_Py_ssize_t = ctypes.c_int64
	else:
	_Py_ssize_t = ctypes.c_int

	#! /usr/bin/env python

	""" Convert values between RGB hex codes and xterm-256 color codes.

	Nice long listing of all 256 colors and their codes. Useful for
	developing console color themes, or even script output schemes.

	Resources:
	* http://en.wikipedia.org/wiki/8-bit_color
	* http://en.wikipedia.org/wiki/ANSI_escape_code

	//
	// Regular Expression for URL validation
	//
	// Author: Diego Perini
	// Created: 2010/12/05
	// Updated: 2018/09/12
	// License: MIT
	//
	// Copyright (c) 2010-2018 Diego Perini (http://www.iport.it)
	//

	var parser = document.createElement('a');
	parser.href = "http://example.com:3000/pathname/?search=test#hash";

	parser.protocol; // => "http:"
	parser.hostname; // => "example.com"
	parser.port; // => "3000"
	parser.pathname; // => "/pathname/"
	parser.search; // => "?search=test"
	parser.hash; // => "#hash"
	parser.host; // => "example.com:3000"

	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

	#!/usr/bin/env python
	#
	# cocoa_keypress_monitor.py
	# Copyright © 2016 Bjarte Johansen <[email protected]>
	#
	# The MIT License (MIT)
	#
	# 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

	Here is a list of scopes to use in Sublime Text 2 snippets -

	ActionScript: source.actionscript.2
	AppleScript: source.applescript
	ASP: source.asp
	Batch FIle: source.dosbatch
	C#: source.cs
	C++: source.c++
	Clojure: source.clojure
	CoffeeScript: source.coffee