kconner

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options:

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

cpq

What is a mutex and how does it work

Imagine a big office (your program), with many assets (shared resources) and many employees (threads). For example, all employees share one common resource - a toilet. They have agreed to use a label on a toilet's door (mutex).

When an employee wants to use the toilet he checks a label on a door (locks a mutex). If it is "engaged" he waits (blocks on a mutex), then when it is "free", he enters the toilet and changes the label to

oodavid

Deploy your site with git

This gist assumes:

• you have a local git repo
• with an online remote repository (github / bitbucket etc)
• and a cloud server (Rackspace cloud / Amazon EC2 etc)
  • your (PHP) scripts are served from /var/www/html/
  • your webpages are executed by apache
• apache's home directory is /var/www/

moriyoshi

Index: sapi/cli/config.w32
===================================================================
--- sapi/cli/config.w32	(revision 308839)
+++ sapi/cli/config.w32	(working copy)
@@ -6,7 +6,8 @@
 ARG_ENABLE('cli-win32', 'Build console-less CLI version of PHP', 'no');
 
 if (PHP_CLI == "yes") {
-	SAPI('cli', 'php_cli.c', 'php.exe');
+	SAPI('cli', 'php_cli.c php_http_parser.c php_cli_server.c', 'php.exe');