HHVM's Profile-guided Region JIT
Guilherme Ottoni HHVM's Profile-guided Region JIT Posted February 17, 2017 Our initial version of the HHVM JIT didn’t use profile-guided optimizations, and we suspected that we were leaving performance on the table because of that. After adding HHIR and beefing up the JIT backend in 2013, a couple of us embarked on the journey of building a profiling mechanism and leveraging it to improve the JIT’
LLVM Code Generation in HHVM
Brett Simmers LLVM Code Generation in HHVM Posted October 23, 2015 One of the most common questions we get about HHVM is why we don’t use LLVM for code generation. The primary reason has always been that while LLVM is great at optimizing C, C++, Objective-C, and other similar statically-typed languages, PHP is dynamically typed. The kinds of optimizations that provide huge performance benefits for
HHVM 3.0.0
Paul Tarjan HHVM 3.0.0 Posted March 28, 2014 This is a fun one! :) At our last major version bump (2.0.0), we basically became a whole new project. We switched from a “PHP -> C++” translator to a virtual machine. This version bump (3.0.0) is a much less dramatic code shift (we’re still a VM, don’t worry), but this time the big announcement is that we support a new language, Hack. I’d like to take
FasterCGI with HHVM
Julek Kopczewski FasterCGI with HHVM Posted December 17, 2013 Today, we are happy to announce FastCGI support for HHVM. FastCGI is a popular protocol for communication between an application server (e.g. running your PHP code) and a webserver. With support for FastCGI, you will be able to run HHVM behind any popular web server (Apache, Nginx, Lighttpd, etc). The webserver is in charge of handling
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