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MF62026 - OSP-OTHER-PERFM INCREASE THE NUMBER OF STATIC PAGING TASKS P

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

OSP-OTHER-PERFM INCREASE THE NUMBER OF STATIC PAGING TASKS P


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

-----------------------------------------------
The algorithm used to determine the number of static paging
(SMIO) tasks is being modified to allow more tasks per node to
improve performance.

CORRECTION FOR APAR MA45593 :
-----------------------------
As dasd become faster, more time is spent building dasd requests
and less time is spent waiting for the physical IO to complete.
For this reason it is necessary to change the algorithms that
determine how many static paging tasks exist on the system.

CIRCUMVENTION FOR APAR MA45593 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS IS A DELAYED PTF TO BE APPLIED AT IPL TIME.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF61519      LIC-OTHER-WAIT SYSTEM HANG

Summary Information

System..............................i
Models..............................
Release.............................V7R3M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA45593
Superseded by:......................View fix details for PTF MF64756
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C6299730


System i Support

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Document Information

Modified date:
24 May 2016