Slow performance logging into IBM Content Manager Enterprise Edition Version 8 or later when running on AIX with Power CPU (APAR IO14002)

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Abstract

IBM Content Manager Enterprise Edition Version 8 utilizes the IBM Cryptographic (“ICC”) routines in the IBM Global Security Kit (“GSKit”) to encrypt various user-level data objects. There is a known issue (APAR IO14002) where, on AIX POWER-series hardware, GSKit V8 performance might degrade substantially during initialization of the ICC libraries. To resolve the issue, apply the testfix for IO14002 to Content Manager EE Version 8.4.2 Fix Pack 3 or Content Manager EE Version 8.4.3 Fix Pack 1. Read this Flash to determine whether the issue impacts you.

Content

Determining whether you are impacted by IO14002 on AIX POWER-series hardware:

If your Content Manager EE library server runs on AIX on POWER Series CPU natively or within a virtual environment, check for the following symptoms to determine whether or not you might be impacted by IO14002:

  • Client logon times seem to take longer than usual, and the Content Manager EE library server PERFORMANCE trace shows an average performance degradation of three times or more for the ICMLOGON library server stored procedure.
  • Queries that call the execute() or executeWithCallback() methods show similar performance degradations for the ICMSEARCH library server stored procedure.
  • On AIX, the tprof tool reveals that libicclib.so is using a disproportionate percentage of CPU resources, similar to the following results:

      Total % For All Processes (SH-LIBs) = 76.13

    Shared Object                                                       %  
    /opt/IBM/db2cmv8/icc/icclib/libicclib.so    =                            73.88
    /opt/IBM/db2cmv8/icc/osslib/libcrypto.so.0.9.7      =                     0.96
    [...]

    Subroutine                               %           Source    
    ==========                             ====== ======  
    .getbyte                                        54.56 /opt/IBM/db2cmv8/icc/icclib/libicclib.so
    .bitter1                                           19.30 /opt/IBM/db2cmv8/icc/icclib/libicclib.so
    [...]
     Total % For All Processes (SH-LIBs) = 76.13

    Shared Object                                                       %  
    /opt/IBM/db2cmv8/icc/icclib/libicclib.so    =                            73.88
    /opt/IBM/db2cmv8/icc/osslib/libcrypto.so.0.9.7      =                     0.96
    [...]

    Subroutine                                      %           Source              
    ==========                                    ====== ======            
    .getbyte                                            54.56    /opt/IBM/db2cmv8/icc/icclib/libicclib.so
    .bitter1                                            19.30 /opt/IBM/db2cmv8/icc/icclib/libicclib.so
    [...]

Action required if you are impacted by IO14002 on AIX POWER-series hardware:
  • Contact IBM Support to obtain the patch for APAR IO14002 for either Content Manager EE Version 8.4.2 Fix Pack 3 or Content Manager EE Version 8.4.3 Fix Pack 1
  • Carefully follow the instructions in the included README file to ensure that the fix is correctly installed and activated.

Action required if you are impacted by IO14002 on AIX POWER-series hardware, but are not at Content Manager EE Version 8.4.2 Fix Pack 3 or Content Manager EE Version 8.4.3 Fix Pack 1 level:

  • You must upgrade to either Content Manager EE V8.4.3 Fix Pack 1 or Content Manager EE V8.4.2 Fix Pack 3 in order to apply this testfix. The testfix is not compatible with any other versions of Content Manager EE.

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Document information


More support for:

Content Manager Enterprise Edition
Library Server

Software version:

8.4.1, 8.4.1.1, 8.4.2, 8.4.2.1, 8.4.2.2, 8.4.2.3, 8.4.3, 8.4.3.1

Operating system(s):

AIX

Software edition:

Enterprise

Reference #:

1572953

Modified date:

2011-12-08

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