PPT Slide
Operating System Support for VM
- OS manages a swap area - section of disk set aside for keeping pages (try swap -l/swap -a on xi or free on Linux).
- Four cases where the OS has to manage page tables:
- Process creation
- Process dispatch (context switch)
- Page fault
- Process exit
- Figure 11.22 diagrams the VM events.
- Let’s step through each of the cases!