Q. How do I find out CPU information under AIX UNIX?
A. You can use graphical system administration tool for the IBM AIX computer operating system called SMIT.
Following commands can be used.
lscfg - Displays configuration, diagnostic, and vital product data (VPD) information about the system including CPU information:
Determining CPU Speed
When using AIX 5.1 and subsequent releases, the following code returns the processor speed in hertz (Hz):
lsattr -E -l proc0 | grep "Processor Speed"
Also, in AIX 5.1 pmcycles command lists the processor speed:
=> Read man page of pmcycles, lsattr, lscfg