HHVM (aka the HipHop Virtual Machine) is an open-source virtual machine designed for executing programs written in Hack and PHP. HHVM uses a just-in-time compilation approach to achieve superior performance while maintaining the flexibility that PHP developers are accustomed to. To date, HHVM (and its predecessor HPHPc before it) has realized over a 9x increase in web request throughput and over a 5x reduction in memory consumption for Facebook compared with the PHP 5.2 engine + APC.
HHVM should be used together with a FastCGI-based webserver like nginx or apache.
|Documentation||HHVM and Hack Manual|
|Discussion||PHP UK Conference 2013 Presentation|
|Download||HHVM Source Code|