In the last few days huge changes have been done to improve server performance at Wikidot.com. In fact I had to turn off searching a few days ago in order to save the database performance.
Improvements have been introduced on a few levels, from the PHP application itself (more caching) to the database structure. Results? Even under high stress during high traffic hours the server uses only ~3-5% of its cpu/disk resources. It seems that there is a lot of spare power now ;-)
To apply the changes the server had to be taken down for 28 minutes. It was the first downtime that long caused by maintenance since the Wikidot launched. So far the server has been working non-stop without a single reboot for the last 6 months.
Many thanks to developers of Memcached, PostgreSQL and many others for high-quality professional open source software!
Michał Frąckowiak @ Wikidot Inc.
Visit my blog at michalf.me
