HP Process Resource Manager User's Guide

Fine-tuning your PRM conﬁguration

Analyzing memory use

Chapter 8 171

Analyzing memory use

The following steps guide you in using PRM’s logging facility to examine

system memory use.

Step 1. Load a PRM conﬁguration with prmconfig -ie APPL if you have not

already done so. Do not enable the PRM resource manager at this time.

(You can disable PRM with the prmconfig -d command if it is already

enabled.)

Step 2. Log PRM memory messages by entering:

# prmconfig -L MEM

Alternatively, you can use the PRM interface in HP System Management

Homepage or in HP Systems Insight Manager to enable logging.

Step 3. Check the /var/adm/syslog/syslog.log ﬁle to determine the

percentage of available memory that PRM groups are actually using.

Determine the memory manager’s PID:

# ps -ef | grep prm2d

Then check the ﬁle by performing a grep on the PID:

# tail -f /var/adm/syslog/syslog.log | grep PID_of_current_prm2d

Step 4. Adjust memory shares and group assignments in the memory records

section of the PRM conﬁguration ﬁle based on the information you

gather.

Step 5. Load the new PRM conﬁguration with prmconfig -i to place processes

in the owners’ initial groups and each conﬁgured application in its

assigned group. Re-check the /var/adm/syslog/syslog.log ﬁle.

Step 6. Repeat Step 3, Step 4, and Step 5 as needed.

Step 7. Turn off memory logging once you are ﬁnished examining your processes’

memory consumption. Use the following command:

# prmconfig -L MEM STOP

Alternatively, use the PRM interface in HP System Management

Homepage or in HP Systems Insight Manager to turn off logging.