DRAKMA documentation updates

The DRAKMA documentation has received a big overhaul to bring the docstrings and the HTML documentation in sync again. I also restructured the large example section in the beginning so that the individual examples are...

lparallel and how I was thinking too complicated

Yesterday, I posted a short article that showed how I used lparallel to speed up a lengthy computation by reading input data files in parallel. A few readers responded, and the response from James M. Lawrence,...

Using lparallel to utilize multiple cores [updated]

A while ago, I discovered the lparallel library as a nice set of abstractions to make parallel programming in Common Lisp easier and more pleasant. The use case that I presented in my previous blog post was...

Orphaned projects on common-lisp.net

We have lost contact to the maintainers of the following projects on common-lisp.net: fret ganelon innen erlisp If you are the original maintainer of any of these, please tell us your current email address or let us know...

lparallel - A Parallel Programming Library for Common Lisp

Parallel programming is hard, and as CPUs are getting ever-faster, I usually tend to find optimizing a single thread of control to be less risky than dealing with threads, locks and synchronized data structures....

BVG - Es ist Zeit, dass Ihr die kaputten U-Bahn-Fahrkartenautomaten ENDLICH repariert

Ich zeige Euch mal, wie Fahrkarten-Automaten in DDR-Straßenbahnen funktioniert haben, vor 25 Jahren: Durch Ziehen des Hebels wurde das eingeworfene Geld - hinter einer Glasscheibe sichtbar - nach...

TRACEs of awesomeness

Debugging is hard, and I admit it freely: I am using print statements regularly to debug code that I'm writing, in particular when not writing Lisp code. With Lisp and its interactive development environment, though,...