Memory management Interview questions


Total available count: 45
Subject - Operating System
Subsubject - Memory management

What do you mean by nice value?

Nice value is the value that controls {increments or decrements} the priority of the process. This value that is returned by the nice () system call. The equation for using nice value is:

Priority = (“recent CPU usage”/constant) + (base- priority) + (nice value)

Only the administrator can supply the nice value. The nice () system call works for the running process only. Nice value of one process cannot affect the nice value of the other process.




Next 5 interview question(s)

1
What are the criteria for choosing a process for swapping out of the memory to the swap device?
2
What are the criteria for choosing a process for swapping into memory from the swap device?
3
What are the requirements for a swapper to work?
4
What are the processes that are not bothered by the swapper? Give Reason.
5
How the Swapper works?