IBM Support

MF59730 - LIC-PERFM High CPU in LD* tasks for SAVRSTLIB

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-PERFM High CPU in LD* tasks for SAVRSTLIB


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
NONE



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.

SUBJECT TO ANY WARRANTIES WHICH CAN NOT BE EXCLUDED OR EXCEPT AS EXPLICITLY
AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
ObjectConnect commands such as SAVRSTLIB may run slowly and use
a lot of CPU in several LD* tasks.

CORRECTION FOR APAR MA44221 :
-----------------------------
An Advanced Analysis macro named LDCONFIG will be provided to
allow a user to display or change some Load/Dump performance
attributes:
- Maximum Load/Dump buffer size
- Task affinity for Load/Dump pipeline tasks

The performance of ObjectConnect commands may be improved by
turning on Load/Dump task affinity for path devices.

CIRCUMVENTION FOR APAR MA44221 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


An Advanced Analysis macro named LDCONFIG is provided to allow a user
to display or change some Load/Dump performance attributes. Adjusting
the attribute values may improve the performance of save and restore
operations.

To use the LDCONFIG macro, follow these steps:
1. Access System Service Tools by using SST or DST.
2. Select Start a service tool.
3. Select Display/Alter/Dump.
4. Select Display/Alter storage.
5. Select Licensed Internal Code (LIC) data.
6. Select Advanced analysis. (You must page down to see this option.)
7. Page down until you find the LDCONFIG command. Then, place a 1
(Select) next to the command and press Enter. You are now on the
Specify Advanced Analysis Options window. The command shows as
LDCONFIG.
8. Enter the appropriate option and any required parameters in the
Options field. For example:
o Enter -h  to display the available options.
o Enter -d  to display the current values.
o Enter -a path on  to enable task affinity for ObjectConnect
operations.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
     NONE

Summary Information

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA44221
Superseded by:......................View fix details for PTF MF67028
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C5135720


IBM i Support

IBM disclaims all warranties, whether express or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. By furnishing this document, IBM grants no licenses to any related patents or copyrights. Copyright © 1996,1997,1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 IBM Corporation. Any trademarks and product or brand names referenced in this document are the property of their respective owners. Consult the Terms of use link for trademark information.

[{"Type":"MASTER","Line of Business":{"code":"LOB57","label":"Power"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SWG60","label":"IBM i"},"Platform":[{"code":"PF012","label":"IBM i"}],"Version":"7.2.0"},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG15V","label":"PTF Cover Letters - OS\/400 General"},"Component":"","ARM Category":[],"Platform":[{"code":"PF012","label":"IBM i"}],"Version":"V7R2M0","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
19 February 2020