Given the output from the following commands:

Why does pmcycles report a slower clock speed than isattr?

A.
The chdev command was used to modify the clock speed for cores allocated to this
LPAR.

B.
The system is being managed by an instance of IBM Systems Director and Active Energy
Manager.

C.
The LPAR uses shared processors, and 2866MHz is the effective speed based on
Entitled Capacity.

D.
The Isattr command shows Maximum speed for TurboCore mode, and the system runs
slower in MaxCore mode.