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Message-ID: <57792e850808251040y6672e1f1ha0036f0778b7a011@mail.gmail.com>
Date: Mon, 25 Aug 2008 10:40:56 -0700
To: "PHP Developers Mailing List" <internals@lists.php.net>
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Subject: TracingPHP
From: iamstever@gmail.com (steve)

With all the news of TraceMonkey bringing an order of magnitude speed
increase to JavaScript, it was only a matter of time before someone
brought up (again) the idea of doing JIT for PHP, so I'll take the
flack and let it be me. The part that knocked me over was the "work
began just about 60 days ago" part. Of course, that needs to be put in
context -- they were working on tracing in Tamarin before trying it in
SpiderMonkey, so there was a huge amount of time dedicated building up
experience that is not counted in that 60 days.

Even so, I think there is good evidence that such a project can be
done in a reasonable timeframe. The largest users of PHP with large
PHP server farms could see significant savings in hardware, and really
ought to consider such a project. (And please, no comments on how
speed of PHP doesn't matter because databases are slow -- such is not
the case for people with such large PHP server farms).

So, perhaps this is the right time, with a nice case study, for PHP
coders at some of these big users to pursue resources for JIT in PHP.
Cough. Facebook. Cough. Yahoo. Cough. Please excuse my coughs...