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Date: Sat, 21 May 2011 07:07:44 +0200
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Subject: Re: [PHP-DEV] [PATCH] arithmetic speedup
From: sebastian@php.net (Sebastian Bergmann)

On 05/20/2011 11:28 AM, Dmitry Stogov wrote:
> The bench.php gets more than 10% speedup (2.5 sec instead of 2.9 sec)
> Real-life applications are not affected. All the PHPT tests are passed.

  I chatted with Kore Nordmann, the creator of Image_3D (raytracer written
  in PHP) and ezcGraph (chart component in the Zeta Components library)
  last night. His code will definitely benefit from these improvements.

  Another performance improvement with regards to math functionality in
  PHP could be compiling math functions such as abs() into specialized
  opcodes thus alleviating the function call overhead that is otherwise
  incurred. Kore mentioned, for example, that Xdebug and KCacheGrind
  currently show that most time is spent in several hundred thousand calls
  to abs() while running the component's test suite.

-- 
Sebastian Bergmann                    Co-Founder and Principal Consultant
http://sebastian-bergmann.de/                           http://thePHP.cc/