HP Process Resource Manager User's Guide

Configuring and enabling PRM on the command line
Configuring PRM
Chapter 7108
When CPUCAPON mode is enabled, the percentages
computed from the SHARES values of the FSS PRM
groups are also used as caps. For information on this
mode, see the section “Capping CPU resource use” on
page 111. You can enable per-group CPU capping using
the MAX field discussed next.
MAX (Available for HP-UX 11i v3 and later.) MAX is an upper
bound for CPU consumption for the FSS PRM group. It
is an integer percent value, ranging from the
percentage determined by the group’s number of CPU
shares to 100.
The sum of the max values in a configuration does not
have to be 100%.
The percentage computed from the SHARES value,
instead of the MAX value, is used as the group’s upper
bound when CPUCAPON mode is enabled. This mode
enables capping for all FSS PRM groups in the
configuration. For more information on this mode, see
the prmconfig(1) manpage.
CORES Is the number of cores assigned to the PSET PRM
group. (A core is the actual data-processing engine
within a processor. A single processor might have
multiple cores. A core might support multiple execution
threads, as explained in the section “Hyper-Threading”
on page 49.) The range for this field is from 0 to
MAX_CORE-1. The number of cores must agree with
the number of cores in CORE_LIST, if CORE_LIST is
specified. If it is not specified, PRM chooses which cores
to use. However, PRM does not guarantee to choose an
optimal set of cores.
CORE_LIST Is the comma-delimited list of core IDs for the cores to
be assigned to the PSET PRM group. You cannot
specify core ID 0 in CORE_LIST. The number of cores
specified in the CORES field must match the number of
cores listed in CORE_LIST.