The mono-librt package includes two subpackages:

1) The Mono.LibRt and Mono.LibRt.HRT real time facilities class
wrappers. These classes wrap interfaces to real time policy and
priority settings, task processor affinity settings, and the high
resolution timer system.

2) The monocyclic latency measurement tool. This tool is based on the
C-language tool called cyclictest. The tool measures wake up
latencies in the Mono runtime and so allows latency problem
diagnosis and demonstration.