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I'm studying for an exam on Operating Systems. I am working on the chapter concerning virtual memory.
I'm getting really confused making a parallel between this very common schema describing a process, and the pages that are allocated in virtual memory.
Are these pages allocated to store the entire process ? Are the pages actually free space for the heap ? Or the stack ?
I really cannot link those two concepts
Arthur Attout
Posted 2018-01-14T20:27:49.067
Reputation: 73
Each individual process may have one or more virtual pages ... – DavidPostill – 2018-01-14T20:35:45.680
So does that mean that pages in virtual memory are only allocated for the data used by the process ? – Arthur Attout – 2018-01-14T20:38:52.360
1No. The OS puts whatever it wants in virtual memory. That can include program code as well as data. – DavidPostill – 2018-01-14T20:39:49.100
Read https://en.wikipedia.org/wiki/Virtual_memory. It covers paged virtual memory :)
– DavidPostill – 2018-01-14T20:40:44.810