warmup.php
5fea96920622production

warmup.php
View Options

			<?php

			/**
			* NOTE: This is an ADVANCED feature that improves performance but adds a lot
			* of complexity! This is only suitable for production servers because workers
			* won't pick up changes between when they spawn and when they handle a request.
			*
			* Phabricator spends a significant portion of its runtime loading classes
			* and functions, even with APC enabled. Since we have very rigidly-defined
			* rules about what can go in a module (specifically: no side effects), it
			* is safe to load all the libraries before we receive a request.
			*
			* Normally, SAPIs don't provide a way to do this, but with a patched PHP-FPM
			* SAPI you can provide a warmup file that it will execute before a request
			* is received.
			*
			* We're limited in what we can do here, since request information won't
			* exist yet, but we can load class and function definitions, which is what
			* we're really interested in.
			*
			* Once this file exists, the FCGI process will drop into its normal accept loop
			* and eventually process a request.
			*/
			function __warmup__() {
			$root = dirname(dirname(dirname(dirname(__FILE__))));
			require_once $root.'/libphutil/src/__phutil_library_init__.php';
			require_once $root.'/arcanist/src/__phutil_library_init__.php';
			require_once $root.'/phabricator/src/__phutil_library_init__.php';

			// Load every symbol. We could possibly refine this -- we don't need to load
			// every Controller, for instance.
			$loader = new PhutilSymbolLoader();
			$loader->selectAndLoadSymbols();

			define('__WARMUP__', true);
			}

			__warmup__();