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High Performance WordPress

by Barry Abrahamson on Jul 22, 2007

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High performance WordPress presentation from WordCamp 2007 by Barry Abrahamson and Matt Mullenweg

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High performance WordPress presentation from WordCamp 2007 by Barry Abrahamson and Matt Mullenweg

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http://barry.wordpress.com	2007
http://wordpress.tv	601
http://www.ilovecolors.com.ar	146
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url_unknown	4
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High Performance WordPress — Presentation Transcript

High Performance WordPress Barry Abrahamson Matt Mullenweg July 22, 2007 WordCamp 2007 – San Francisco, CA

The Problem

Serve as many users as possible with a reasonable amount of resources

Un-tuned LAMP Stack

Linux, Apache 2, PHP 4 or 5, MySQL 4.1 or 5.0

8 requests/sec

691,200 pageviews/day

Enough for > 99% WP installations

Alternative PHP Cache (APC)

http://pecl.php.net/package/APC

12 requests/second

1,036,800 pageviews/day

50% performance increase

WP-Cache

http://mnm.uib.es/gallir/wp-cache-2/

300 requests/sec

25,920,000 pageviews/day

25x increase!!!!!

Possible gotcha

http://markjaquith.wordpress.com/2006/02/13/adventures-with-wp-cache2-apc/

Apache Alternatives

High concurrency

Majority (90%) of requests on a page are static

Litespeed, lighttpd, apache + fcgi, proxy

PHP 5 – Just for fun

Same as PHP 4 without APC

Same as PHP 4 with APC 3.0.14

Using APC from CVS, PHP5 is 15% faster than PHP4

When one isn’t enough

Move the database to a second server (or 50)

HyperDB

Load balancing

HyperDB

Load Balancing

Hardware or software?

Pound

http://www.apsis.ch/pound/

Thousands of requests/sec

Layer 7

Caching

Memcache

http:// www.danga.com/memcached /

Varnish

http:// varnish.linpro.no

WP-Cache alternatives

WordPress.com

Over 1.2 million blogs

10+ million pageviews/day (dynamic)

40+ million hits/day (static + dynamic)

7,000+ database queries/second

80,000+ memcache calls/second

http://wordpress.com/stats/

Questions

Ana Mui Stanley , Self Employed at Home Thanks for highlighting the issue on wordpress. I’m Ana Mui Stanley, working on my latest site on lyrics, www.lyrics-search.org/ . I enjoy reading the slide. 1 year ago

Are you sure you want to Yes No

John Granule , Web Developer at Home No question. Good slide indeed.

John.
www.freeringtones.ws/ 1 year ago

Anisa Sliney Mark , Self Employed at Uni I think it is better you put some picture in there. looks more interesting and inviting

Regards
Anisa
http://phonehut.info
http://www.jpolls.net 2 years ago

Bernard (ben) Tremblay , free lance at Ben Tremblay & Associates Can you see yourself making mention of S3 in there somewhere? If only by way of contrast ...

4 years ago

Jonathan Boutelle , entrepreneur CTO at SlideShare Nice presentation!

We use pound as well (it's on the way out for us though, as we switch from lighttpd to Apache, we get load balancing for free).

I can only imagine the issues that come up when you start getting the kind of traffic that wordpress.com gets... you guys do an amazing job of keeping things up (and performant) 4 years ago

High Performance WordPress

by Barry Abrahamson on Jul 22, 2007

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High Performance WordPress — Presentation Transcript