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MF59054 - LIC Change code to gain slight performance increase during p

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC Change code to gain slight performance increase during p


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
TR   5770999  V7R2M0    MF99101   00/00    0000



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
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foregoing.

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APAR Error Description / Circumvention

-----------------------------------------------
When the system gets into a page out wait state, it is possible
that the pool objects become a hot cache line, which can slow
the overall system down.  By caching a pointer of the owning
node in each subpool object, we can avoid touching the pool, and
the hot cache line will not affect the system's performance.

CORRECTION FOR APAR MA44044 :
-----------------------------
The code is corrected.

CIRCUMVENTION FOR APAR MA44044 :
--------------------------------
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
--------------  ------------------------------------------------------------
   MF58329      OSP-SRCB6000103-UNPRED LOOKS SIMILAR TO A FIRMWARE ISSUE CAU

Summary Information

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA44044
Superseded by:......................View fix details for PTF MF99109
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C4276720


System i Support

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Document Information

Modified date:
23 September 2014