Entries from June 2009
Criteria for choosing a process for swapping out of the memory to the swap device
What are the criteria for choosing a process for swapping out of the memory to the swap device? The process’s memory resident time, Priority of the process and The nice value. Read More...
Criteria for choosing a process for swapping into memory from the swap device
What are the criteria for choosing a process for swapping into memory from the swap device? The resident time of the processes in the swap device, the priority of the processes and the amount of time the processes had been swapped out. Read More...
Requirements for a swapper to work
What are the requirements for a swapper to work? The swapper works on the highest scheduling priority. Firstly it will look for any sleeping process, if not found then it will look for the ready-to-run process for swapping. But the major requirement for the swapper to work the ready-to-run process must be core-resident for at Read More...
Processes that are not bothered by the swapper
What are the processes that are not bothered by the swapper? Give Reason. Zombie process: They do not take any up physical memory. Processes locked in memories that are updating the region of the process. Kernel swaps only the sleeping processes rather than the ‘ready-to-run’ processes, as they have the higher probability of being scheduled Read More...