An interesting article appeared on the front page of the drupal.org website, detailing the migration of the popular “crooks and liars” blog from WordPress to Drupal. According to the developers, when the site was averaging around the “200,000 hits per day mark, we started experiencing a lot of down time from server overloads. We were utilizing the famous wp-cache plugin for WordPress, as well as hosting the database on a single master and two slaves, using the HyperDB class for WordPress to handle the replication.” After experiencing a high degree of server downtime from the massive number of comments on the site, “crooks and liars” began to consider porting the site to Drupal for performance issues.
According to the site development team, benchmark tests showed that a Drupal 5.x installation was able to serve more than 8 times the number of pages per second vs. a standard WordPress 2.3 set up:
“I setup default installations of WordPress 2.3 and Drupal 5. I only enabled the core caching mechanisms in both setups and populated them with the exact same data and display options. Both systems also used the default themes and features. After running a series of tests through JMeter, I quickly confirmed my beliefs and even exceeded them as I saw Drupal was able to handle about eight times the requests per second as WordPress, both on the front page and the same single post view with 157 comments.”
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