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Date: Thu, 28 Feb 2013 14:16:33 -0500
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To: Pierre Joye <pierre.php@gmail.com>
Cc: Rasmus Lerdorf <rasmus@lerdorf.com>, Ferenc Kovacs <tyra3l@gmail.com>, 
	Anthony Ferrara <ircmaxell@gmail.com>, PHP Developers Mailing List <internals@lists.php.net>, 
	Zeev Suraski <zeev@zend.com>
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Subject: Re: [PHP-DEV] [VOTE] Integrating Zend Optimizer+ into the PHP distribution
From: ilia@prohost.org (Ilia Alshanetsky)

>>Well the question around the delay, is what is the negative
>> consequence of the delay, versus the advantage of having a built-in
>> opcode cache shipped as part of 5.5 which is likely to give many
>> people an impetuous to upgrade from their current 5.2/5.3 install.
>
> If we get to get it stable in a relatively short period. It is hard with
> APC, which is available open since its very 1st day, it is harder with o+,
> new code, new algos, new settings, etc.

If ZO+ was a brand new code, I'd agree with you 100%. However, it is
an existing solution that has been used in a wild in quite some time
an limited empirical evidence shows that it works somewhat better than
APC in most cases from stability perspective.

Ultimately, peoples opinions will drive the decision, just wanted to
share my perspective based on personal experience and feedback that I
got from people trying to use 5.4 in production and their expressed
pains...