HP-UX Workload Manager User's Guide

Configuring WLM
Defining the PRM components (optional)
Chapter 5184
Specifying a group’s maximum memory (optional)
You can assign workload groups a maximum percentage of memory. This
maximum is a hard upper limit, except for the OTHERS group. (The
OTHERS group may receive more than its gmaxmem if all other groups have
received their gmaxmem and there is still memory left.)
NOTE When specifying a workload group’s maximum memory, be very careful
of resource interactions, which are explained in “How resource
allocations interact” on page 453. In particular, be sure the workload
groups get the memory they need. (When setting values for gminmem,
gmaxmem, and gmemweight, ensure that the groups get sufficient memory
even when all groups are active.)
To specify the maximum percentage of memory a group receives, use the
gmaxmem keyword in the prm structure, according to the following syntax:
gmaxmem = group : max [, ...];
where
group Is the workload group name.
You cannot specify the PRM_SYS group in a gmaxmem
statement.
max Is group’s maximum percentage of memory. The value
must be an integer between the group’s gminmem value
and 100, inclusive.
The default max value is 100.
Weighting a group so it gets more memory (optional)
The larger a memory weight value you assign a group, the more memory
it receives when there is not enough memory to satisfy all gmaxmem
requests.
To specify a group’s memory weight, use the memweight keyword in the
prm structure, according to the following syntax:
memweight = group : wt [, ...];
where