Hi Dmitry, > -----Original Message----- > From: Dmitry Stogov [mailto:dmi...@zend.com] > Sent: Thursday, September 1, 2016 1:57 PM > To: PHP internals list <internals@lists.php.net> > Cc: Zeev Suraski <z...@zend.com>; Xinchen Hui <xinche...@zend.com> > Subject: [PHP-DEV] JIT for PHP project > > Hi @internals, > > I'm glad to say that we have started a new JIT for PHP project and hope to > deliver some useful results for the next PHP version (probably 8.0). > We are very early in the process and for now there isn't any real performance > improvement yet. So far we spent just 2 weeks mainly working on JIT > infrastructure for x86/x86_64 Linux (machine code generation, disassembling, > debugging, profiling, etc), and we especially made the JIT code-generator as > minimal and simple as possible. The current state, is going to be used as a > starting point for research of different JIT approaches and their usability for PHP. > > The code is available at: https://github.com/zendtech/php-src/tree/jit- > dynasm/ext/opcache/jit > > The sources may be built and tested as regular PHP (no any special external > dependencies required). > JIT itself is implemented as a part of Opcache. > You may try it in action: > > sapi/cli/php -d opcache.jit_buffer_size=32M Zend/bench.php sapi/cli/php -d > opcache.jit_buffer_size=32M -d opcache.jit_debug=1 Zend/bench.php 2>&1 | > less > > As I mentioned we didn't try to achieve any real performance improvement yet, > although we do currently see 20% speedup on bench.php, but a bit of a > slowdown on real-life apps. > > Wish us luck :) > I just wanted to ask about the status. After starting to do some basic work https://github.com/zendtech/php-src/compare/jit-dynasm...weltling:jit-dynasm I've stumbled upon a couple of things
- in zend_elf.c, the current binary that loads php is being read in, I guess this part needs to be ported to parse the Windows COFF format - with DynASM, seems zend_jit_x86.dasc will need to be extended for some compatibility, please correct if I'm wrong Regarding these, maybe you've one or another tip for me? Is this still relevant? Or I jump into it too early? Thanks anatol -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
