An L=S criterion for optimal multiprogramming

  title={An L=S criterion for optimal multiprogramming},
  author={Peter J. Denning and Kevin C. Kahn},
Balancing interpagefault lifetime (L) against page swap time (S) has always been a performance criterion of great intuitive appeal. This paper shows that, under normal conditions, controlling the memory policy parameter to enforce the constraint L ≥ S, and allowing the multiprogramming load to rise as high as demand warrants without violating this constraint, will produce a load slightly higher than optimum. Equivalently, using the criterion L &equil; uS for some u slightly larger than 1 will… CONTINUE READING