Computer Science Fundamentals
Operating Systems
Subjective
Mar 07, 2013
What are short, long and medium-term scheduling?
Detailed Explanation
- Long term scheduler determines which programs are admitted to the system for processing. It controls the dgree of multiprogramming. Once admitted, a job becomes a process.
- Medium term scheduling is part of the swapping function. This relates to processes that are in a blocked or suspended state. They are swapped out of real-memory until they are ready to execute. The swapping-in decision is based on memory-management criteria.
- Short term scheduler, also know as a dispatcher executes most frequently, and makes the finest-grained decision of which process should execute next. This scheduler is invoked whenever an event occurs. It may lead to interruption of one process by preemption
Discussion (0)
No comments yet. Be the first to share your thoughts!
Share Your Thoughts