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Realtime Linux: academia v. reality

Aug 06, 2010, 09:05 (4 Talkback[s])
(Other stories by Thomas Gleixner)

"The Linux Kernel community has a proven track record of being in disagreement with - and disconnected from - the academic operating system research community from the very beginning. The famous Torvalds/Tannenbaum debate about the obsolescence of monolithic kernels is just the starting point of a long series of debates about various aspects of Linux kernel design choices.

"One of the most controversial topics is the question how to add realtime extensions to the Linux kernel. In the late 1990's, various research realtime extensions emerged from universities. These include KURT (Kansas University), RTAI (University of Milano), RTLinux (NMT, Socorro, New Mexico), Linux/RK (Carnegie Mellon University), QLinux (University of Massachusetts), and DROPS (University of Dresden - based on L4), just to name a few. There have been more, but many of them have only left hard-to-track traces in the net.

"The various projects can be divided into two categories:

1. Running Linux on top of a micro/nano kernel
2. Improving the realtime behavior of the kernel itself"

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