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Summary: LITMUS RT : A Status Report #
Bj orn B. Brandenburg, Aaron D. Block, John M. Calandrino,
UmaMaheswari Devi, Hennadiy Leontyev, and James H. Anderson
The University of North Carolina at Chapel Hill
Abstract
This paper describes a realtime extension to Linux
called LITMUS RT , which is being designed to support
realtime workloads on multiprocessor and multicore
platforms. The recent shift by chip makers to multi
core designs, combined with building interest within the
opensource community in supporting realtime features
in Linux, makes this research quite timely. The devel
opment of LITMUS RT was driven by a desire to bridge
the gap between those working on algorithmic issues
pertaining to multiprocessor realtime resource alloca
tion and operatingsystems researchers working to im
prove realtime support within operating systems such
as Linux.
1 Introduction
In this paper, we report on the development of a real
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