How much variability in performance should I expect when moving a workload to a z10 EC?
As with the introduction of any new server, workloads with differing characteristics will see some variation in performance when moved to the z10 EC. The performance ratings for a server are determined by averaging the performance of a variety of workloads that represent what we understand to be the major components of our customers’ production environments. While the ratings provide good “middle-of-the-road” values, they do represent an average, and by definition some workloads fall higher than the average and some workloads fall below. The z10 EC has been specifically designed to focus on new and emerging workloads where the speed of the processor is a dominant factor in performance. The result is a quantum jump in clock speed – the z10 EC runs at 4.4 Ghz compared to the z9 EC which ran at 1.7 Ghz. The storage hierarchy design of the z10 EC is also improved over z9 EC, however, the improvement is somewhat limited by the laws of physics so the latencies have increased relative to the
