The example shows:

•A memory record for PRMID 2, which specifies 10 megabytes of memory.

•A memory record for the tools/compilers group. This record specifies 10 megabytes for the group.

Adding/modifying private memory shares/caps

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

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

2.Using the syntax shown below:

#!PRM_MEM:{PRMIDGROUP}:SHARES:[MAX]:::[[IMPORT]:[EXPORT]:] and explained in the section “Memory record syntax” (page 59):

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.

3.Ensure that there is a one-to-one correspondence between the memory records and group/CPU records.

4.Save the file and exit your editor.

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 [-fconfigfile] {-s -c}

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

#prmconfig -k [-fconfigfile] {-s -c}

Use the -fconfigfile option to specify a file other than the default /etc/prmconf. The -soption displays warnings regarding the configuration file. (The -coption displays a subset of the -swarnings.)

6.Enable PRM’s memory manager if it is not already enabled:

#prmconfig -e MEM

Alternatively, enable all PRM resource managers using prmconfig -ewithout any additional arguments:

#prmconfig -e

Adding/modifying shared memory allocations

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

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

2.Using the syntax shown below:

#!SHARED_MEM:{PRMIDGROUP}:MEGABYTES

and explained in the section “Memory record syntax” (page 59):

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

b.Specify the size of the shared memory allocation in integer megabytes.

62 Configuring and enabling PRM on the command line