Prepaging

1 definition found

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:

  prepaging
       
           (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)