1. We have moved from vBulletin to XenForo and you are viewing the site in the middle of the move. Though the functional aspect of everything is working fine, we are still working on other changes including the new design on Xenforo.
    Dismiss Notice

Page Fault rates

Discussion in 'Windows' started by Ravish, Oct 23, 2008.

  1. Ravish

    Ravish New Member

    I am not sure if this is the right spot to post this but here goes...

    I want to know how I calculate the highest acceptable page-fault rate not exceeding 100 nano's if I have a demand paging system with the following knowns:

    EAT - 50 nanos
    Valid page in page table
    Page fault service time (PFS) = 5 milli
  2. neo_vi

    neo_vi New Member

    The Formula is
    EAT (Effective Access Time)=(1 – p) x memory access time + p (page fault overhead + [swap page out,if needed] + swap page in + restart overhead)

    Where p is Page Fault Rate
    0<= p <=1

    Page Fault time = page fault overhead + [swap page out, if needed] + swap page in +
    restart overhead

    I think with this formula u can calculate

Share This Page