PPT Slide
VM Systems used in Actual OSes
- Mach & OSF/1
- Object-oriented approach, even in memory system.
- Global FIFO replacement with a standby list.
- Copy-on-write.
- Clustered paging.
- UNIX System V Release 4
- 2-handed clock page replacment
- Address space divided into segments (but it is not a segmented VM system; it is paged).
- Mostly hardware independent implementation.
- Clustered paging.