Simulation: Mosix vs. E-PVM
Average Slowdown (lower is better -- note that Mosix should beat a static strategy!)
Notes:
3000 Scenarios Simulated (First 1000 Results Pictured)
Modifying the operating system kernel, even to achieve a powerful dynamic system like Mosix, is not always the preferable or even a possible course. In this light, we found it interesting to examine how closely the Enhanced PVM Strategy approximates the power of a dynamic system.
The average slowdown over all executions for the Mosix Strategy was 8.557. The average slowdown over all executions for the Enhanced PVM Strategy was 9.795.
In the simulations, the Enhanced PVM Strategy added about 14% to Mosix’s average slowdown, while PVM round robin added about 68%. This is another exciting result. Static systems using the Enhanced PVM Strategy can achieve performance almost comparable to that of powerful dynamic systems, even when we give those dynamic systems the advantage of optimized resource allocation algorithms and job reassignment.