The Auragen file system.


This article on the interesting Wave Transactional File System inspired me to look up an earlier file system that also used copy on write semantics. From: Anita Borg, Wolfgang Blau, Wolfgang Graetsch, Ferdinand Herrmann, and Wolfgang Oberle. 1989. Fault tolerance under UNIX. ACM Trans. Comput. Syst. 7, 1 (January 1989),…

Annals of unintentional irony


Come back after a trip to see Marc Andreessen's team of twitter posters complaining wryly about how government is so gosh durn big and citing experts like Milton Friedman. A difficulty of modern economics: I have yet to talk to a non-Keynesian who believes Keynesians intend to cut fiscal spending…

Ikea and RedHat


This is state of the art for systems software now - which is not all that impressive. Glantz explained that Ikea has more than 3,500 Red Hat Enterprise Linux (RHEL) servers deployed in Sweden and around the world. With Shellshock, every single one of those servers needed to be patched and…

Real-time Linux


My opinion has always been that the Linux-RT project was based on an unfixable engineering error.   A few words on the status and the future of RT: ----------------------------------------------- The situation since last years RTLWS (https://lwn.net/Articles/572740/) has not improved at all, it's worse than before. While shortly after RTLWS quite…

The Horrors of Software Patents


US Patent Number  4701722 A is a perfect example of everything software patent opponents hate about software patents: It implements  mathematical functions that are pretty well known. It covers a process of changing information not changing any physical object one could touch. It is owned by a company with a…