what is the preferred data structure for Rate monolithic scheduling algorithms and why?

[Anup Wadhekar]

I have seen CPU scheduling algorithms (Rate monolithic - Real time CPU scheduling) or priority scheduling using array data structure

http://c-programmingguide.blogspot.in/2012/09/c-program-for-rate-monotonic-scheduling.html

But I would like to know if this is the preferred data structure if yes why OR if any data struture is preferred for RMS then which one is better and why

any suggestions would be appreciated

Thanks in advance