Evaluation studies Min & Baer’s study

Results

• miss ratio

  • similar for both compared schemes, regardless of the number of processors
  • considerably higher for randomly distributed iterations

• write traffic

  • higher for the SW scheme (write-backs of dirty lines at the end of each instance of one epoch)
  • independent of the number of processors and process scheduling policy

• network traffic

  • higher for the HW scheme (multicasting for inductive invalidation)
  • for the HW scheme, rapidly increases with the increase of the number of processors (SW scheme - self-invalidation)
  • write traffic and misses have a relatively small impact on the network traffic