IBM doesn't have magic pixie dust in zseries mainframes. I had one, and trust me, you can beat it in every single metric with commodity hardware. What makes th

IBM doesn't have magic pixie dust in zseries mainframes. I had one, and trust me, you can beat it in every single metric with commodity hardware. What makes them "faster" in many cases is that the decades old apps were written by people "with a clue" and they run pretty much on the hardware. I've had a joke going for a few years, that websphere was created to cause efforts to port off the mainframe to fail. AKA its pretty much impossible to take something running in ztpf, rewrite it in java and plunk it on a EC2 instance and have a hopes chance in hell of making it work without spending more than the next two decades of mainframe maintenance costs in monthly amazon bills. That doesn't mean you can't rewrite it in C++ on a DL580 with an attached Flash840 and leave the mainframe in the dust if you have competent programmers.