Philippe Ajoux
e551d3918f
In order to build a dependency graph of continuation execution and data-fetching in PHP-land, we need a few instrumentation points in the asio_ext HHVM extension. There are 4 additions required: 1. Callback when a continuation finishes successfully. 2. Callback when a continuation blocks on a wait_handle. 3. Get array of WaitHandles a GenArrayWaitHandle is waiting on. 4. Get WaitHandle that the SetResultToRefWaitHandle is waiting on. I don't think this should really affect performance, as in the normal case, nothing has changed, but you never know... I'm also not sure who should be reviewing this, so I've just added @jan for now. If you could pile other people on, that would be cool. sandcastle appears to be broken.
HipHop VM for PHP
HipHop VM (HHVM) is a new open-source virtual machine designed for executing programs written in PHP. HHVM uses a just-in-time compilation approach to achieve superior performance while maintaining the flexibility that PHP developers are accustomed to. HipHop VM (and before it HPHPc) has realized >5x increase in throughput for Facebook compared with Zend PHP 5.2.
Required Packages, and Installing and Running HipHop VM
The latest information is available on the wiki.
Contributing to HipHop VM
HipHop VM is licensed under the PHP and Zend licenses except as otherwise noted.
Before changes can be accepted a Contributors Licensing Agreement must be signed and returned.