What is scheduling in Computer ?

Scheduling is a process by which thread, process or data flows are given access to system resources. This is the important part for the CPU of your computer setup.

The schedulers concerned mainly with:

1.     Throughput: The total no of processes that complete their unit per time unit.

2.    Turn around time: Total time between submission of process and it’s completion.

3.  Response time: Amount of time when a request was submitted until the first response is produced.

4.     Waiting time: It is the time for which process remains in a ready queue.

Types of Schedulers:

• The long term or admission scheduler decides which job or processes are to be admitted to the ready queue.
• The medium term scheduler temporarily removes process from main memory and places them to secondary memory.

In scheduling process starvation is a problem which is a resource management problem where a process does not get a resource for a long time. Aging  is a technique which is used to avoid starvation problem. It works by adding a aging factor to the priority of each request.