IBM Support

MF65709 - LIC-DB-OTHER-PERFM Reduce contention on cacheline modified d

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-DB-OTHER-PERFM Reduce contention on cacheline modified d


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
PRE  5770999  V7R2M0    MF65554   00/00    0000
PRE  5770999  V7R2M0    MF59242   00/00    0000
PRE  5770999  V7R2M0    MF60658   00/00    0000
PRE  5770999  V7R2M0    MF59916   00/00    0000
PRE  5770999  V7R2M0    MF59834   00/00    0000
CO   5770999  V7R2M0    MF64483   00/00    0000
CO   5770999  V7R2M0    MF58843   00/00    0000
CO   5770999  V7R2M0    MF58844   00/00    0000
CO   5770999  V7R2M0    MF58030   00/00    0000
CO   5770999  V7R2M0    MF58264   00/00    0000
CO   5770999  V7R2M0    MF58265   00/00    0000
CO   5770999  V7R2M0    MF59279   00/00    0000
CO   5770999  V7R2M0    MF59291   00/00    0000
CO   5770999  V7R2M0    MF57839   00/00    0000
CO   5770999  V7R2M0    MF57725   00/00    0000
CO   5770999  V7R2M0    MF57840   00/00    0000
CO   5770999  V7R2M0    MF57841   00/00    0000
CO   5770999  V7R2M0    MF57843   00/00    0000
CO   5770999  V7R2M0    MF57844   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
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

-----------------------------------------------
Large nodal systems that are executing database updates at a
very high frequency could experience high cacheline contention,
potentially reducing system performance.

CORRECTION FOR APAR MA47497 :
-----------------------------
The code was modified to reduce the cacheline update frequency.

CIRCUMVENTION FOR APAR MA47497 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


********************************************************************
THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED
PTF HAS ALREADY BEEN APPLIED AND ITS SPECIAL INSTRUCTION FOLLOWED,
IT IS NOT NECESSARY TO FOLLOW THAT SPECIAL INSTRUCTION AGAIN.
********************************************************************

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF MF61047 :
=================================================

If one or both of the PTFs for MA45275 or MA45104 have been installed
on a system when a table or physical file is saved, then BOTH of those
PTFs must also be installed on the system where the file is restored to
prevent the possibility of a restore failure.  Specifically, some files
with variable length or LOB fields may be damaged during the restore if
the PTFs are not present.  Because this may occur when restoring across
releases, PTFs for all releases are listed.

NOTE:  One or both of the PTFs for MA45275 and MA45104 may be installed
on the restore system when a table or physical file is restored even if
the PTFs were not installed on the save system at the time of the save.
This includes saving a file from a system at one release and restoring
it to a system at a different release.

The PTFs for MA45275 are:
V7R1:   MF62518
V7R2:   MF62519
V7R3:   MF61374

The PTFs for MA45104 are:
V7R1:   MF61046
V7R2:   MF61047
V7R3:   MF60986


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF65560      OSP-Database base support for enhanced database limits proce
   MF65562      OSP-Database base support for enhanced database limits proce
   MF62277      LIC-DB Future release compatibility changes
   MF65508      IPL-SRCD90027C0-WAIT ECHO PROCESSING BETWEEN THE SYSBAS AND
   MF64480      LIC-DB-OTHER-UNPRED TMPSTG TEMPORARY STORAGE INCREASING
   MF59960      OSP-DB ROLLBACK OF AN ALTER TABLE MAY NOT FULLY CLAN UP RECO
   MF59593      MSGMSGCPDB8E4RC6-DISK-HLIC VARY ON OF IASP FAILS WITH MSGCPD
   MF57614      OSP-DB database enhancements
   MF57614      OSP-SRCB6001215-UNPRED SYSTEM CRASH AND SRCB6001215
   MF65016      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF64737      OSP-DB-MSGMCH1807-F/#DBIXCHN
   MF64482      LIC-DB-OTHER-UNPRED TMPSTG TEMPORARY STORAGE INCREASING
   MF64313      LIC-DB Duplicate entries in table with primary key constrain
   MF64214      OSP-MSGMCH3203EC1710-PAR-940XBASE #DBPARIX TO MODULE . . . .
   MF63213      OSP-PERFM INDEX NOT USED DUE TO INCORRECT 'IS NOT NULL' EKR
   MF63082      LIC-DB-OTHER-SRCB6005121-LOOP RECURSION IN DB INDEX FUNCTION
   MF62917      OSP-MSGCPF8199 INDEX INCORRECTLY MARKED DAMAGED DURING IASP
   MF62637      OSP Database maintain dababase index unique key counts and r
   MF62558      OSP-DB LIC DB Parallel index build cash performance tuning
   MF62405      OSP Database maintain dababase index unique key counts and r
   MF61560      OSP-DB Database IPL/Vary on Database Processing Improvements
   MF59271      OSP-DB INTERNAL MAINTENANCE
   MF62272      LIC-DB Future release compatibility changes
   MF62238      OSP-F/EXSNDPM-T/QQQQUERY-MSGMCH3203 OPNQRYF LEADS TO MSGMCH3
   MF61948      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF61600      OSP-DB General
   MF61516      LIC-DB Put out info VLOG for long running Catch-Up (Phase 2)
   MF61315      LIC-DB Put out info VLOG for long running Catch-Up
   MF61288      OSP-DB DataBase Vary-On processing to avoid tolerated except
   MF61170      OSP-DB DataBase Vary-On processing to avoid tolerated except
   MF61157      OSP-DB LIC DB Index Build Concurrency Tuning
   MF60892      OSP-DB Internal Maintenance for SLIC DB IPL/Vary-on
   MF60781      OSP-DB-OTHER-UNPRED DOCUMENTING WHEN THE UNIQUE COUNTS FOR A
   MF60666      LIC-DB Internal maintenance
   MF60661      OSP-DB Database Access Path Build Resource Consumption Tunin
   MF60572      LIC-DB Internal maintenance
   MF60559      OSP-DB LIC DB Index Build Concurrency Tuning
   MF60072      LIC-DB Internal maintenance
   MF60059      LIC-DB-OTHER-F/MCH0601-T/DBPMEVIRRNPROBENODE Query referenci
   MF59903      OSP-DB Internal maintenance
   MF59884      OSP-DB Restore performance with lots of database files and R
   MF59818      LIC-DB Opening a delayed maintenance Access Path causes cont
   MF59762      LIC-DB-OTHER-UNPRED TEMP STORAGE GROWTH DUE TO TEMP RADIX IN
   MF59674      LIC-DB EVI on IASP not refreshing when overflow reaches thre
   MF59597      LIC-DB-OTHER-F/#DBXSIZE-T/QDBMAINT-MSGMCH2804 INDEX ACCESS P
   MF59492      LIC-DB-OTHER-PERFM Performance improvements for SQE EVI Acce
   MF58528      OSP-DB-OTHER-UNPRED NEED A WAY TO IDENTIFY A ACCESS PATH REB
   MF59475      OSP-DB-OTHER-UNPRED VL06001389 INDEX INVALIDATED. FILES SHOW
   MF59455      LIC-DB-JRN EVI refresh inhibits force, impacts journal sync
   MF59275      OSP-DB-OTHER-PERFM SCAN OF EVI OVERFLOW AREA CAUSES PERFORMA
   MF58199      LIC-DB-UNPRED Index build status file 16 byte alignment
   MF57915      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF57842      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF60105      OSP-DB-OTHER-INCORROUT RPG PROGRAM READING A FIELD PROCEDURE
   MF65331      OSP - SLIC DB maintenance for HASH_VALUES and UPDATE with "o
   MF64684      OSP-PAR-940XBASE LONG JOURNAL WAITS - RECRA
   MF64503      OSP QDBSRVXR JOB LOOPING WHEN RETRIEVING BY KEY DUE TO INCOH
   MF64308      LIC-DB Duplicate entries in table with primary key constrain
   MF64089      OSP-DB-OTHER-F/RMSLRELEASESEIZENOTOKEN-T/QDBPUTM-MSGMCH3203
   MF63831      OSP-DB-OTHER FILE WITH AUX SPACE BECOMES DAMAGED.
   MF63256      LIC-DB performance improvement accessing force bitmap
   MF63036      LIC-DB excessive 06004C31 vlogs
   MF62920      OSP-F/#DBUPDIM-T/QDBUDR-MSGMCH4801 APPLY JOB FAILS WITH MCH4
   MF62875      OSP-DB Database Initialization (SLIC) IPL/Vary-on step perfo
   MF62809      OSP-DB A JOB MAY CREATE MANY THREADS (THOUSANDS) IF CQE USES
   MF62694      OSP SLIC DB vary-on diagnostics
   MF62538      OSP-DB SLIC DB Internal Maintenance for LOB processing of Au
   MF62276      LIC-DB Future release compatibility changes
   MF62266      LIC-DB Future release compatibility changes
   MF61858      OSP-DB Performance scaling (cache line) #dbscblk
   MF61603      OSP-DB Performacne scaling (cache line) #dbreten
   MF60500      OSP-PERFM LARGE AMOUNTS OF READS ON FILE CAN CAUSE EXCESSIVE
   MF57748      LIC-DB Prevent masked constraint Enablement
   MF59003      LIC-DB-OTHER-WAIT LONG SEIZE HOLD ON CQE QUERY
   MF58262      OSP-DB-OTHER-T/QTNDTCOBX/01E8-MSGMCH6204 RPGSQL PGM FAILS WI
   MF57845      LIC-DB DBL3 tasks causing seize contention
   MF62265      OSP-PAR B6001215
   MF61465      LIC-DB-OTHER-SRCB6005121-UNPRED SYSTEM HALT DURING NORMAL OP
   MF61372      OSP-DB Database Create Temp OMLOBB Data Space Improvements
   MF61164      OSP-DB-OTHER-THREADS-PERFM RESTORE FAILS WITH MCH1604
   MF61008      LIC-DB Reduce DB Recovery time on vary-on after flash copy
   MF60886      LIC-DB Force recycled Aux pieces at close
   MF60838      OSP-F/#DBDELIM-T/QDBUDR-RC1716-MSGMCH3203 RGZPFM WITH ALWCAN
   MF60711      LIC-DB VL06005EED for very large files
   MF60612      LIC-DB 06005D60 vlogs during massive delete of records
   MF60466      OSP-INCORROUT WHEN INTERNAL STRUCTURES ARE INCORRECT AND DEL
   MF60262      LIC-DB Prevent Performance issue caused by repeated rebuild
   MF59833      OSP-MSGCPF8111 WHEN SAVING A FILE AFTER UPGRADE TO 7.2, FILE
   MF59668      LIC-DB Set last used VL storage at IPL.
   MF59619      OSP-DB-OTHER-F/#DBGETAX-T/QDBPUT-MSGMCH3203 A MSGMCH3203 MAY
   MF59611      OSP-MSGCPF8111 PARTIAL DAMAGE ON FILE MEMBER WHEN PERFORMING
   MF59333      LIC-DB Prevent rebuild of internal recycle index
   MF58535      LIC-DB LOG 06005D60 vlogs
   MF57837      LIC-DB V720. Backup is (either) hung or taking exccessively
   MF59252      OSP-DB looping QClnSysLog job in database I/O (delete operat
   MF62201      OSP-DB Internal performance improvements for cpyf, alter tab
   MF61363      OSP-DB Database Insert Processing Improvements
   MF61325      OSP-DB-MSGMCH3402 F/T stringHighUse/QDBFEOD is returned when
   MF60721      OSP-DB-OTHER-F/#DBGETAXX/1716-T/QDBPUTMX/0702-MSGMCH3203 ALT
   MF59709      OSP-DB-OTHER-F/DBMAPV2F-T/QDBUDR-MSGMCH3203 A MSGMCH3203 MAY
   MF59670      OSP DB MCH3203 f/#dbentad t/QDBPUT with VL02001716 from #dbe
   MF59601      OSP DB MCH3203 f/#dbentad t/QDBPUT with VL02001716 from #dbe
   MF59296      OSP-DB-OTHER-INCORROUT A SAVE-WHILE-ACTIVE WHILE A RGZPFM IS
   MF58263      OSP- CPF5079 Number of locks under commit in job exceeds lim
   MF58040      OSP- Internal maintenance
   MF57987      OSP-DB-OTHER-UNPRED SELECT FROM INSERT STATEMENT CAUSES INDE
   MF57746      LIC-DB Prevent masked constraint Enablement
   MF61294      OSP-DB DataBase Vary-On processing to avoid tolerated except
   MF61173      OSP-DB DataBase Vary-On processing to avoid tolerated except
   MF65528      MSGMCH5204-HLIC-94XXDISK R720 IASP FAILS TO VARY ON. MSGMCH3
   MF65196      OSP-RC3-MSGCPF523B RESTORE OF A PARTITIONED TABLE RESULTS IN
   MF65080      OSP-MSGCPI8365 UNABLE TO END JOB WITH OPEN COMMIT
   MF65017      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF64579      OSP-DB-OTHER-F/#DBIXCHN-T/QDBPUT-MSGMCH1807 A MSGMCH1807 MAY
   MF64481      OSP-DB Internal query optimization enhancements: materialize
   MF64032      LIC-DB-PERFM Slow queries over with LOB columns
   MF63653      OSP DATABASE next IDENTITY COLUMN VALUES NOT CORRECT AFTER F
   MF62270      LIC-DB Future release compatibility changes
   MF61947      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF61047      LIC-DB Correct Save/Restore inconsistancy in Recycle index
   MF58846      OSP-DB internal optimizations
   MF58753      LIC-DB-IPL System Dumped with a B6000407 SRC
   MF58689      OSP-DB-OTHER-INCORROUT SYSPARTITIONSTAT THE NEXT_IDENTITY_VA
   MF58644      LIC-DB Allow save of file with deleted constraints with acti
   MF58031      OSP-LOOP JOBS LOOP IN DBSTCONTAINER AND CAN NOT BE ENDED. IP
   MF57922      OSP RSTLIB with partitioned tables and RI constraints is slo
   MF57916      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF57744      LIC-DB Prevent masked constraint Enablement
   MF63656      OSP DATABASE next IDENTITY COLUMN VALUES NOT CORRECT AFTER F
   MF62656      OSP-DB Internal Maintenance for SLIC DB - Implicitly turn on
   MF62269      LIC-DB Future release compatibility changes
   MF62268      LIC-DB Future release compatibility changes
   MF59691      OSP-DB Internal Maintenance #dbdelcp/#dbdelct VLOG long runn
   MF61965      OSP-F/#DBCINDS-T/QQQOOODBOP-MSGMCH2804 MCH2804 RECEIVED ON A
   MF61557      OSP-DB Database IPL/Vary on Database Recovery & Initializati
   MF61533      OSP-DB Database IPL/Vary on Database Recovery Processing Imp
   MF61472      OSP-DB Database IPL/Vary on Database Recovery Processing Imp
   MF61393      OSP-DB Database IPL/Vary on Database Recovery Statistics
   MF61162      OSP-DB-OTHER-THREADS-PERFM RESTORE FAILS WITH MCH1604
   MF61005      LIC-DB 060056B9 vlogs on first touch after IPL, IASP vary on
   MF60833      OSP-DB Internal Maintenance for DB IPL/Vary-on
   MF60770      LIC-DB-OTHER-PERFM IASP VARY ON SPENDING MORE TIME THEN EXPE
   MF60512      OSP-DB-OTHER-LOOP AFTER A WARM FLASHCOPY, IASP VARYON GOT ST
   MF59687      OSP-MSGCPF8111 PARTIAL DAMAGE ON FILE MEMBER WHEN PERFORMING
   MF59665      LIC-DB Set last used VL storage at IPL.
   MF59610      OSP-MSGCPF8111 PARTIAL DAMAGE ON FILE MEMBER WHEN PERFORMING
   MF59334      LIC-DB Preserve Variable length storage after an IPL

Summary Information

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA47497
Superseded by:......................View fix details for PTF MF69499
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C9297720


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Document Information

Modified date:
23 February 2022