HP Process Resource Manager User's Guide

Conﬁguring and enabling PRM on the command line

Conﬁguring PRM

Chapter 7118

Adding/modifying private memory shares/caps

To add or modify a memory record, follow these steps:

Step 1. Open the desired conﬁguration ﬁle in a text editor.

Step 2. Using the syntax shown below:

#!PRM_MEM:{PRMID|GROUP}:SHARES:[MAX]:::[[IMPORT]:[EXPORT]:]

and explained in the section “Memory record syntax” on page 113:

a. Add or modify a line specifying a PRMID or group name for an

existing group.

b. Specify an integer number of shares.

c. Optionally, assign a memory cap. This cap must be greater than or

equal to the percentage represented by the number of shares speciﬁed

in Substep b. (Memory caps do not have to sum to 100%.)

d. Optionally, isolate the memory by specifying an IMPORT and EXPORT

value of 0.

NOTE You cannot set EXPORT to 0 for the OTHERS group.

Step 3. Ensure that there is a one-to-one correspondence between the memory

records and group/CPU records.

Step 4. Save the ﬁle and exit your editor.

Step 5. Load the conﬁguration using one of the commands below.

To initialize, moving user processes to the owners’ initial groups and

moving applications to their assigned groups, use the command:

# prmconfig -i [-f configfile] {-s | -c}

To keep the existing assignments of users, processes, and groups, use the

command:

# prmconfig -k [-f configfile] {-s | -c}

Use the -f configfile option to specify a ﬁle other than the default

/etc/prmconf. The -s option displays warnings regarding the

conﬁguration ﬁle. (The -c option displays a subset of the -s warnings.)