Well, in the mainframe world, people don't typically measure in MIPS or FLOPS for day-to-day work. It's all about efficiency and throughput. We care about actual elapsed time, and resource consumption rather than some abstract benchmarking metric. Part of this is because a batch job will NEVER get 100% of the CPU, because it is sharing the system with so many other processes.

                                        ----TIMINGS (MINUTES)-----                          -----PAGING COUNTS---- 
  STEPNAME PROCSTEP    RC   EXCP   CONN       TCB       SRB  CLOCK          SERV  WORKLOAD  PAGE  SWAP   VIO SWAPS
  ENDES000             00  15522   2105  0.019965  0.000636    0.1        116946  BATCH        0     0     0     0