> Does anyone have an idea how running WebSphere Application > Server on z/OS on a System z zAAP would compare to running it > on "x" number of processors of a P595 at 1.9GHZ?
> Any good guesses on the value of "x" here? > What if it was an IFL instead? Bob: This is a hard question to answer. A z9 EC processor runs at 1.75GHz but you can't really compare z9 GHz to p5 GHz (totally different chip designs). An IFL, a zAAP, and a CP run at the same speed (unless you have a "sub-capacity" CP). Of course it really depends on the total application. If you are doing a lot of I/O (say a database back-end), then a z9 will probably outperform a p5 with the same number of processors. If the application is compute bound (not likely), the a p5 will probably outperform at z9. z9 virtualizes (in the general sense of running multiple concurrent workloads) better than any other platform so if you are running lots of WAS images z9 will probably perform better. You really need to get IBM WAS people involved who can look at your workload and give you specific advise. Of course, talking to other customers who are running WAS on z9 is a great way to get an idea. There are lots of customers running WAS on both z9 and p5 so talk to your IBM rep to set up some calls with other customers! Jim ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
