RTEMS systems have the option to capture timestamped data about what is happening in the system. But reading long files with timestamped messages is not a good way to get insight into the run-time behavior of a system. Find us a free, open source timeline visualization tool which can be taught to read the RTEMS captured information.

Ideal solution would be one which dynamically updates as input arrives and is flexible on input sources (e.g. files, sockets, etc).

http://www.rtems.org/wiki/index.php/GoogleCodeInProjects#Identify_a_Timeline_Visualization_Tool