All rule-pairs are compared to each other
under different performance criteria. For
mean flowtime criteria, NINQ+SPT and
LINQ+SPT are the best choices in general
while NINQ+MDD and NINQ+EDD are also
good for systems with uniformly distributed
process times. Meanwhile, NINQ+AT-RPT
and LINQ+AT-RPT both outperform others in
maximum flowtime and flowtime variance
criteria. On the other hand, MDD, EDD, and
MST job-dispatching rules coupled with
NINQ or LINQ machine-selection rules create
dispatching rule-pairs that can minimize