Simon Willison’s Weblog

Linux performance basics. This kind of Linux knowledge is rapidly becoming a key skill for server-side web development. 24th January 2010, 1:50 pm

All you ever wanted to know about writing bloom filters. This helped me understand a key use case for bloom filters: reducing the impact of the “worst case search is when there are no matching results so everything gets scanned” problem. 30th January 2009, 8:26 am