Newsgroups: php.apc.dev,php.internals
Path: news.php.net
Xref: news.php.net php.apc.dev:191 php.internals:43178
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: error (pb1.pair.com: domain yahoo-inc.com from 203.99.254.144 cause and error)
DomainKey-Status: good
DomainKey-Signature: a=rsa-sha1; s=serpent; d=yahoo-inc.com; c=nofws; q=dns;
	h=message-id:date:from:user-agent:mime-version:to:cc:subject:
	references:in-reply-to:content-type:content-transfer-encoding;
	b=tDZxVwf/Pcxx2EitJAnhDSa3UlaITShremvTpOVa+I7udCmM1c0YPaSy47rxYqfW
Message-ID: <49A6A82C.9030504@yahoo-inc.com>
Date: Thu, 26 Feb 2009 20:03:16 +0530
User-Agent: Thunderbird 2.0.0.17 (X11/20080925)
MIME-Version: 1.0
To: shire <shire@tekrat.com>
CC: PHP Internals List <internals@lists.php.net>, apc-dev@lists.php.net
References: <49A097FE.10205@tekrat.com>
In-Reply-To: <49A097FE.10205@tekrat.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [APC-DEV] [RFC] APC/PHP Lazy Loading
From: gopalv@yahoo-inc.com (Gopal V)

shire wrote:

> http://tekrat.com/downloads/bits/apc_lazy_php53.patch
> 
> You should be able to apply the above patch to the latest PHP_5_3 
> branch, and recompile the latest APC CVS against it.  Two ini settings 
> enable/display lazy loading:
> 
> apc.lazy_functions=On/Off
> apc.lazy_classes=On/OFf

Awesome!

> Alternative implementations would include replacing the function entries 
> with an internal function that would load the opcodes when called, 
> however I found this implementation to be problematic, still requires 
> changes to PHP, and would also require inserting entries into the 
> function/class tables which itself ends up being an expensive task for 
> extremely large codebases.

I still haven't given up on the executor hooks. But can't argue with
code that works (yes, it works for most of my tests).

I should finish up the RO patches in place so that we can catch stuff
being overwritten in shm without locks - reflection, xdebug and suhosin
looks like potential culprits here.

Cheers,
Gopal
-- 
If I learn from my mistakes, pretty soon I'll know everything