WordPress CPU usage

It looks like I’m about to have my first GPU usage overage charge since I switched to MediaTemple due to a large usage spike during my switch from Drupal to WordPress.

Most of the heavy usage occurred during the actual switch and soon after the switch. Although WordPress has a reputation as a CPU hog, I was able to get the usage down to where it was before I switched.

As you can see in the usage chart below, enabling Zend optimizer helped, but enabling WP Super Cache really got it back down to where it was before the switch. Unfortunately WP Super Cache disables the WPTouch plugin, which reformats the page for an iPhone or iPod Touch.

One interesting thing I noticed is that 404 error pages use almost twice as much CPU as successful page requests, so I added static pages for a few invalid incoming links, which also made a big difference.

GPU Usage Report
Uploaded with plasq‘s Skitch!

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