Simon Willison’s Weblog

HipHop for PHP: Move Fast. Facebook have open-sourced their internally developed PHP to C++ compiler. They serve 400 billion PHP pages a month (that’s more than 150,000 a second) so any performance improvement dramatically reduces their hardware costs, and HipHop drops the CPU usage on their web servers by an average of 50%. “We are serving over 90% of our Web traffic using HipHop, all only six months after deployment”.

# 2nd February 2010, 6:59 pm / facebook, hiphop, optimisation, performance, php, traffic

Capital FM London Traffic Map. We launched this today at GCap (née Global Radio). I’m particularly impressed with how well the team handled clustering the traffic cameras on the Google map.

# 27th June 2008, 6:22 pm / capitalfm, clustering, gcap, google-maps, london, traffic