Over a million developers have joined DZone.
Platinum Partner

Why is PHP 5.3 on Windows faster than previous PHP versions?

· Web Dev Zone

The Web Dev Zone is brought to you in partnership with Mendix.  Discover how IT departments looking for ways to keep up with demand for business apps has caused a new breed of developers to surface - the Rapid Application Developer.

Last week I had the good fortune of hearing Rasmus Lerdorf speak at the Seattle PHP Meetup. His talks was excellent – it was sprinkled with history, personal stories, tips, best practices, and insights into what he’s thinking about for the future. At one point, during a section on best practices, he urged everyone to move to PHP 5.3 if they hadn’t already. He added (and I’m paraphrasing here), “If you aren’t running PHP 5.3 on Windows, you’re lucky…because you have a 40% performance boost coming.”

He clarified this by saying that, with some help from Microsoft, improvements were made in PHP 5.3 that led to a 40% performance improvement of PHP on Windows. Because he didn’t go into the details of why this performance boost was realized, I got questions in email the next day asking about why. So, here’s a slide from a presentation I did last year that explains why (I actually borrowed this slide from a presentation that Pierre Joye did...you can see his complete presentation, which has more detail, here:http://www.slideshare.net/pierrej):


As you can see from the slide, there are 3 main reasons for the performance improvement:

  1. PHP 5.3 is compiled with the VC9 compiler (also known as the Visual C++ 2008 compiler).
  2. Rather than calling the POSIX abstraction layer in the Windows build of PHP, the Win32 API is called directly.
  3. PHP library management was improved in PHP 5.3.

Clearly, that’s the short answer, but it should give you some idea of why PHP 5.3 is 40% faster on Windows than previous versions of PHP.

The Web Dev Zone is brought to you in partnership with Mendix.  Learn more about The Essentials of Digital Innovation and how it needs to be at the heart of every organization.


Published at DZone with permission of Brian Swan , DZone MVB .

Opinions expressed by DZone contributors are their own.

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}