Denis denisftw

Thread Pools

Thread pools on the JVM should usually be divided into the following three categories:

CPU-bound
Blocking IO
Non-blocking IO polling

Each of these categories has a different optimal configuration and usage pattern.

Fibers

Fibers are an abstraction over sequential computation, similar to threads but at a higher level. There are two ways to think about this model: by example, and abstractly from first principles. We'll start with the example.

(credit here is very much due to Fabio Labella, whose incredible Scala World talk describes these ideas far better than I can)

Callback Sequentialization

Consider the following three functions

	<?xml version='1.0'?>
	<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
	<fontconfig>
	<!-- ~/.config/fontconfig/fonts.conf -->
	<match target="font" >
	<edit mode="assign" name="hinting" >
	<bool>true</bool>
	</edit>
	</match>
	<match target="font" >

	var webpack = require('webpack');

	module.exports = {
	entry: './ui/entry.js',
	output: { path: __dirname + '/public/compiled', filename: 'bundle.js' },
	module: {
	loaders: [
	{ test: /\.jsx?$/, loader: 'babel-loader', include: /ui/, query: { presets: ['es2015', 'react'] } }
	]
	},