Glossary
CPW (Commercial Processing Workload)
IBM's proprietary relative performance benchmark for IBM i commercial workloads, used to compare capacity across Power model tiers and generations.
CPW figures exist for every current Power11 model (see power11.as400system.com for the full breakdown) but have not been published for Power12, since no Power12 hardware exists to benchmark.
Related Terms
rPerf (Relative Performance)
IBM's relative performance metric for AIX and Linux workloads on Power hardware, the AIX/Linux counterpart to the IBM i-focused CPW metric.
Power 11
IBM's current, shipping Power processor and server generation, announced July 2025, spanning the entry S1112 through the flagship E1180.