以下文字介绍节选自litmus官网介绍
LITMUSRT is the Linux Testbed for Multiprocessor Scheduling in Real-Time Systems. Its purpose is to provide a foundation for applied real-time systems research. To this end, LITMUSRT
- adds predictable scheduling and synchronization policies to the Linux kernel,
- reduces the effort involved in prototyping new scheduling and synchronization polices in the kernel by offering a simplified scheduling policy plugin interface,
- provides
liblitmus a userspace library to expose the added kernel functionality to applications, and - comes with Feather-Trace, a low-overhead tracing framework.
This guide provides an introduction to the user-facing parts of LITMUSRT, namely (3) and (4), and assumes that the kernel (with the LITMUSRT modifications in place) has already been compiled and is working. How to modify the kernel itself, and in particular how to develop new policy plugins, is beyond the scope of this guide. We instead refer those insterested in developing new plugins to the plugin creation tutorial.
This guide describes LITMUSRT as of version 2017.1 (released in May 2017).
\\
