PI28840: IMPROVE PERFORMANCE OF IFCID COLLECTION PARTICULARLY FOR IFCID150

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Sites may experience increased CPU utilization in the IRLM
  address space depending on the usage profile needed to
  meet the sites monitoring methodology.
  
  additional key words:
  Lock data XLOK REALTHDA DP_SY_EXC DP_TH_EXC IFCID0150
  IRLM XCF activity  high CPU slow response
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: OMEGAMON XE for DB2 PE/DB2PM                 *
  *                 users of component                           *
  *                 - Classic Interface                          *
  *                 - CUA Interface                              *
  *                 - OMEGAMON collector                         *
  *                 - TEP                                        *
  *                 - Enhanced 3270 UI                           *
  ****************************************************************
  * PROBLEM DESCRIPTION: Collection of lock information may      *
  *                      cause an increase in CPU in the IRLM    *
  *                      address space, an increase in           *
  *                      communication with the IRLM XCF group,  *
  *                      and negatively impact applications      *
  *                      obtaining locks.                        *
  ****************************************************************
  * RECOMMENDATION: Apply this PTF.                              *
  ****************************************************************
  PROBLEM SUMMARY:
  Collection of lock information can be too expensive.
  
  PROBLEM CONCLUSION:
  Collect lock information less frequently and via other methods.
  
  KEYWORDS:
  IRLM XCF LOCK LATCH INCREASE CPU
  

Problem conclusion

• Collect lock information less frequently and via other methods.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UI25722 UI25723 PI41106

Modules/Macros

•    HKDB511J HKDB520J KDB511J  KDB520J  KO2ACONB
  KO2APCCA KO2APCCK KO2APCCS KO2APCC2 KO2APCFA KO2APCFK KO2APCFS
  KO2APCF2 KO2APCJA KO2APCJK KO2APCJS KO2APCJ2 KO2APCNA KO2APCNK
  KO2APCNS KO2APCN2 KO2APCOA KO2APCOK KO2APCOS KO2APCO2 KO2APCPA
  KO2APCPK KO2APCPS KO2APCP2 KO2APCQA KO2APCQK KO2APCQS KO2APCQ2
  KO2APC1A KO2APC1K KO2APC1S KO2APC12 KO2APC2A KO2APC2K KO2APC2S
  KO2APC22 KO2APC3A KO2APC3K KO2APC3S KO2APC32 KO2APC4A KO2APC4K
  KO2APC4S KO2APC42 KO2APC9A KO2APC9K KO2APC9S KO2APC92 KO2CCINB
  KO2CCNSA KO2CCNSK KO2CCNSS KO2CCNS2 KO2CDFCA KO2CDFCK KO2CDFCS
  KO2CDFC2 KO2CDFSA KO2CDFSK KO2CDFSS KO2CDFS2 KO2CDINA KO2CDINK
  KO2CDIN2 KO2CDSYA KO2CDSYK KO2CDSYS KO2CDSY2 KO2CIFDB KO2CIF3A
  KO2CIF3K KO2CIF3S KO2CIF32 KO2CIF8A KO2CIF8K KO2CIF8S KO2CIF82
  KO2CIMSA KO2CIMSB KO2CIMSC KO2CIMSD KO2CIMSE KO2CIMSF KO2CIMSG
  KO2CIMSK KO2CISBA KO2CISBK KO2CISBS KO2CISB2 KO2CLKDA KO2CLKDK
  KO2CLKDS KO2CLKD2 KO2CTHAA KO2CTHAK KO2CTHAS KO2CTHA2 KO2CTHBA
  KO2CTHBK KO2CTHBS KO2CTHB2 KO2CTHDA KO2CTHDK KO2CTHDS KO2CTHD2
  KO2CTHEA KO2CTHEK KO2CTHES KO2CTHE2 KO2CTHGA KO2CTHGK KO2CTHGS
  KO2CTHG2 KO2CTHHA KO2CTHHK KO2CTHHS KO2CTHH2 KO2CTHIA KO2CTHIK
  KO2CTHIS KO2CTHI2 KO2CTHJA KO2CTHJK KO2CTHJS KO2CTHJ2 KO2CTHKA
  KO2CTHKK KO2CTHKS KO2CTHK2 KO2CTHLA KO2CTHLK KO2CTHLS KO2CTHL2
  KO2CTHMA KO2CTHMK KO2CTHMS KO2CTHM2 KO2CTHNA KO2CTHNK KO2CTHNS
  KO2CTHN2 KO2CTHOA KO2CTHOK KO2CTHOS KO2CTHO2 KO2CTHPA KO2CTHPK
  KO2CTHPS KO2CTHP2 KO2CTHQA KO2CTHQK KO2CTHQS KO2CTHQ2 KO2CTHRA
  KO2CTHRK KO2CTHRS KO2CTHR2 KO2CTHSA KO2CTHSK KO2CTHSS KO2CTHS2
  KO2CTH1A KO2CTH1K KO2CTH1S KO2CTH12 KO2CTH2A KO2CTH2K KO2CTH2S
  KO2CTH22 KO2CTH3A KO2CTH3K KO2CTH3S KO2CTH32 KO2CTH5A KO2CTH5K
  KO2CTH5S KO2CTH52 KO2CTH6A KO2CTH6K KO2CTH6S KO2CTH62 KO2CTH7A
  KO2CTH7K KO2CTH7S KO2CTH72 KO2CTH8A KO2CTH8K KO2CTH8S KO2CTH82
  KO2CTH9A KO2CTH9K KO2CTH9S KO2CTH92 KO2CT2SA KO2CT2SK KO2CT2SS
  KO2CT2S2 KO2CVTSC KO2CVTSF KO2CVTSG KO2ED01K KO2ED01S KO2EGX1K
  KO2EGX1S KO2EIX1K KO2EIX2K KO2EIX2S KO2I148  KO2NCS1B KO2NCS3B
  KO2OCINB KO2ODSTB KO2OHILB KO2OINTB KO2ONCYB KO2OTHAB KO2OTHBB
  KO2OTHZB KO2OTH6B KO2OXCMB KO2OXDVB KO2OXSYB KO2OXTHB KO2OXTRB
  KO2OXTSB KO2WTHTB KO2WXCPB KO2XDBSK KO2XDBSS KO2XDFSK KO2XDFSS
  KO2XLKDA KO2XLKDK KO2XLKDS KO2XLKD2 KO2XSY2K KO2XSY2S KO2XTHSA
  KO2XTHSK KO2XTHSS KO2XTHS2 KO2XTH1K KO2XTH1S KO2XTH3K KO2XTH3S
  KO2ZAGTA KO2ZAGTK KO2ZAGTS KO2ZAGT2 KO2ZATC  KO2ZCBA  KO2ZCBRA
  KO2ZCBRK KO2ZCBRS KO2ZCBR2 KO2ZCPR  KO2ZCPS  KO2ZDBIA KO2ZDBIK
  KO2ZDBIS KO2ZDBI2 KO2ZDB2  KO2ZDVTA KO2ZDVTK KO2ZDVTS KO2ZDVT2
  KO2ZIIOK KO2ZIIOS KO2ZIORA KO2ZIORK KO2ZIORS KO2ZIOR2 KO2ZLKNA
  KO2ZLKNK KO2ZLKNS KO2ZLKN2 KO2ZOMI  KO2ZSTLA KO2ZSTLK KO2ZSTLS
  KO2ZSTL2 KO2ZTOP  KO2ZXCB  KO2ZXIO  KO2ZXRE  KO2ZXSN
  

Fix information

• Fixed component name

  OM XE DB2PE/PM

• Fixed component ID

  5655OPE00

Applicable component levels

• R511 PSY UI25722

     UP15/06/02 P F506

• R520 PSY UI25723

     UP15/06/02 P F506

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.