Viewing a processor schedule or something of the like
Does anyone know of an application, tool, or open source library that allows the viewing and/or creation of schedules (such as a processor/thread schedule).
Something that looks along the lines of this:
I have looked all over the internet and have found absolutely nothing. Sure, everyone has created their own diagrams of how a schedule could look (like the pictures above), but it seems like there is no software tool or library out there to actually do it.
I have tried the various timeline/gantt chart tools out there and they are all unacceptable for the task.