A comparison Of Hard Real-Time Linux Alternatives
An anonymous reader writes "This study compares the real-time capabilities of various Linux kernels. It was part of a project to upgrade the control software in water-wave generators at research institutions around the world. The results of the study were used by Akamina for the selection of a new RTOS for the control system upgrade of Canada's largest hydraulics and coastal engineering laboratory, the National Research Council Canadian Hydraulics Centre in Ottawa."
A full blown RTOS is overkill for many RT applications.
Many RT tasks (like the one used in this article) can be described as:
Wait for IRQ. Do something *NOW*. Wait for IRQ
These tasks can be supported by the rtirq-patch. rt-irq is a very small patch that allows just that (and nothing more). It would be nice to add rtirq to the comparison.
RFC1925