Mark Williams
5c491af2de
The Func*'s in the native func unit are all persistent, which means that we can strip them, and skip the Unit::merge call on every request. But we didnt set the flag to compact the unit if the only things that needed stripping were Func*'s. Fixed that, and also fixed it so all the builtins are marked persistent even in non-repo-auth mode (funcs are not if rename function is enabled, because we implement fb_rename_function by swapping target cache entries).
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.
HipHop is most commonly run as a standalone server, replacing both Apache and modphp.
Installing
You can install a prebuilt package or compile from source.
Running
You can run standalone programs just by passing them to hhvm: hhvm my_script.php.
HipHop bundles in a webserver. So if you want to run on port 80 with document root /var/www:
sudo hhvm -m server /var/www
For anything more complicated, you'll want to make a config.hdf and run sudo hhvm -m server -c config.hdf.
Contributing
We'd love to have your help in making HipHop better. If you run into problems, please open an issue, or better yet, fork us and send a pull request.
If you want to help but don't know where to start, try fixing some of the Zend tests that don't pass. You can run them with hphp/test/run. When they work, move them to zend/good and send a pull request.
Before changes can be accepted a Contributors Licensing Agreement must be signed.
Licence
HipHop VM is licensed under the PHP and Zend licenses except as otherwise noted.