HP Process Resource Manager User's Guide

Understanding how PRM manages resources
How PRM manages CPU resources
Chapter 250
For example, on a two-way MP system with Hyper-Threading disabled,
FSS PRM Group1 has two active processes A and B, and FSS PRM
Group2 has two active processes C and D. In this example, PSET PRM
groups are not configured. PRM assigns process A to the first core,
process B to the second core, process C to the first core, and finally
process D to the second core—as shown in Figure 2-3.
Figure 2-3 PRM’s process scheduling on MP systems (Hyper-Threading
disabled)
If a process is locked down on a particular core, PRM does not reassign it,
but does take it into account when distributing other processes across
the cores. PRM manages the CPU resource only for the cores on a single
system; it cannot distribute processes across cores on different systems.
Group2
C
D
Group1
A
B
Core 2
Core 1
A, C
B, D