Explain Process Scheduling Queues,What Is Scheduler And Types Explain
In This Topic & Blog Having Any Query Then Post your Comment and Suggestion Below
Process Scheduling Queues
Job queue – set of all processes in the system.
Ready queue – set of all processes residing in main
memory, ready and waiting to execute.
Device queues – set of processes waiting for an I/O
device.
• PCBs move from queue to queue as they change state
– Decisions about which order to remove from queues are
Scheduling decisions
– Many algorithms possible (few weeks from now)
Schedulers
The operating system has many schedulers.
There are 3 main schedulers:
• ‘long term scheduler’
• ’short term scheduler’
• and medium term scheduler’.