prepaging

architecture (Or "working set model") A technique whereby

the operating system in a paging virtual memory

multitasking environment loads all pages of a process's

working set into memory before the process is restarted.

Under demand paging a process accesses its working set by

page faults every time it is restarted. Under prepaging the

system remembers the pages in each process's working set and

loads them into physical memory before restarting the process.

Prepaging reduces the page fault rate of reloaded processes

and hence generally improves CPU efficiency.

["Modern Operating Systems", Andrew S. Tanenbaum,

pub. Prentice Hall, Inc. 1992].

(1998-04-23)