Last time I worked on mainframes in 2012 the price to have a legacy banking app running with around 300 transactions/sec on IMS or DB2 was just insane.
IMO any "modern" architecture can handle the load. After all Google, Apple, Facebook, Microsoft, Amazon, etc. are not running on mainframes (just taking mastodon examples).
The main difference between ARM, x86 or Power vs Z is that you can keep your CPU usage between 95-100% in production and not break everything.
IMO any "modern" architecture can handle the load. After all Google, Apple, Facebook, Microsoft, Amazon, etc. are not running on mainframes (just taking mastodon examples).
The main difference between ARM, x86 or Power vs Z is that you can keep your CPU usage between 95-100% in production and not break everything.