Honored Contributor Honored Contributor
Re: Performance Issues with HP-UX 11.31 IA - ARIES and ORACLE DATABASE 7.3.4

Aries isn't involved in I/O...it simply interprets each machine opcode (from PARISC) and executes the equivalent IA64 opcode(s). Because this is an interpreter, the CPU usage will be very high, perhaps 4 to 8 times more than native IA64 programs. So if you are running Oracle 7.3.4 PARISC code on the Itanium platform, I would expect 1/10th of the performance on native PARISC (or worse). Check your IA64 CPU usage with Glance or top and compare that to the disk I/O rates you had in the old server for the same tasks.

 

And of course, Oracle 7.3.4 is completely unsupported on IA64 Itanium systems.