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Date: Fri, 30 Nov 2012 10:04:27 -0500
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To: Sara Golemon <pollita@php.net>
Cc: Rasmus Lerdorf <rasmus@lerdorf.com>, PHP Internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] HHVM and PHP
From: xwisdom@gmail.com (Raymond Irving)

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Many thanks for the feedback.

I would love see some JIT features added to the core as this would help to
improve the overall performance.

Sara,

I like your extension idea as this would not require any changes to the
core.

Here's another idea:
-----------------------------------
1. Modify PHP core to cache opcodes on first request
2. Create external program (or library) that can be scheduled to compile
cached opcodes to native code when necessary. This can be scheduled as a
cron job
3. PHP will then run either the cached opcodes or the compiles codes when
the page is request a second time.

In this solution you get bets of both worlds. PHP can execute opcode cache
or  native code if it's available. There would be no need for the core to
further compile or optimize the opcodes as the external program will
perform these operations. The end result is that the application
performance will improve with usage and time.

What do you think?

__
Raymond


On Tue, Nov 27, 2012 at 2:37 AM, Sara Golemon <pollita@php.net> wrote:

> On Mon, Nov 26, 2012 at 9:09 PM, Rasmus Lerdorf <rasmus@lerdorf.com>
> wrote:
> > On 11/26/2012 09:03 PM, Sara Golemon wrote:
> >> P.S. - I do disagree with Rasmus' statement about none of us looking
> >> at fitting a JIT into PHP. ;)
> >
> > I think you misread my reply. I specifically said that a JIT is a
> > possibility, just not the HH approach.
> >
> No no, I caught that.  I was just being pedantic in that I *am*
> looking at fitting a few JIT approaches into PHP (via extensions),
> including one based on HipHop's approach. :p  But if we're still being
> pedantic, then I should admit to not working too hard on that front.
>
> -Sara
>

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