OSI/FTAM Configuration and Management Manual

Monitoring FTAM Performance

OSI/FTAM Configuration and Management Manual—421944-001

5-15

Redistributing Processes Among Processors

To maximize system efficiency, including the speed of disk access and response to

requests, you should ensure that your workload is balanced over the resources available

in the system. If you determine that one of your processors is overloaded, you can

relocate some of your initiator or responder processes to different processors by

changing the values of their CPU and BACKUPCPU attributes.

To locate the primary and/or backup of an initiator or responder process in a different

processor, first stop the process, then change its CPU and/or BACKUPCPU attributes

and, finally, restart the process. Processes must be in the STOPPED state before you can

change these attributes using the ALTER command. To place the example FTAM

responder process FTR1 in the STOPPED state, allow the work in progress to complete

and issue the SCF STOP PROCESS command:

STOP PROCESS $AMGR.#FTAMR.FTR1

For more information on placing processes in the STOPPED state, see Controlling

Object States on page 4-18. To specify a new backup processor for the example FTAM

responder, enter the following command:

ALTER PROCESS $AMGR.#FTAMR.FTR1, BACKUPCPU 3

Restart the process by issuing the following command:

START PROCESS $AMGR.#FTAMR.FTR1

Adjusting the Execution Priorities of Processes

FTAM initiator and responder processes are I/O intensive. Therefore, if other processes

are running on the same processor as your initiator or responder processes, you might

increase performance slightly by increasing the priority of your initiators and

responders. If a process is servicing important requests, you can improve its response

time by setting a high priority for that process. If your initiator or responder processes

are handling large data transfers, you can improve overall system performance by setting

the execution priority of your initiators and responders higher than those of other

processes on your system.

The following example shows how to change the execution priority for the initiator

process $FTI2 to 160:

ALTER PROCESS $AMGR.#FTAMI.FTI2, PRIORITY 160

For more information on the PRIORITY attribute and altering process configurations,

see Controlling System Performance on page 3-33 and Changing Process Configurations

on page 3-58.