When perl is not quite fast enough. An excellent collection of tips, tools and best practices for writing optimal Perl.
(Remember: Write an algorithm that works, write its tests, then make it faster, and only if you have to.)
This is BrainLog, a blog by Dan Sanderson. Older entries, from October 1999 through September 2010, are preserved for posterity, but are no longer maintained. See the front page and newer entries.
August 5, 2004