A fix is available
APAR status
Closed as program error.
Error description
Performance degradation can occur when COBOL programs are compiled with TEST(...) or NOTEST(DWARF), and a COBOL run-time message is issued.
Local fix
Compile with NOTEST(NODWARF)
Problem summary
**************************************************************** * USERS AFFECTED: Users of Enterprise COBOL V5.1 and later * * releases running programs that issue COBOL * * runtime messages. * **************************************************************** * PROBLEM DESCRIPTION: Performance degradation during * * COBOL runtime messages processing * * occurs if the COBOL * * program was compiled with the DWARF * * suboption of * * TEST compiler option. * **************************************************************** * RECOMMENDATION: Install the PTF provided. * **************************************************************** Extra processing time was used when retrieving Dwarf information for the program during runtime message processing. This retrieval was done repeatedly when the same message was printed a large number of times, resulting in performance degradation for the COBOL application.
Problem conclusion
The COBOL runtime library was changed to reduce the frequency of Dwarf access by caching the Dwarf information. COB0501T/K COB0502T/K COB0601T/K COB0602T/K COB0603T/K
Temporary fix
Comments
APAR Information
APAR number
PH40054
Reported component name
LE ENT COBOL LI
Reported component ID
568819812
Reported release
7D0
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-08-23
Closed date
2021-09-27
Last modified date
2021-10-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
IGZCER4 IGZCEV4 IGZCMGEN IGZCMGUE IGZLLIBV IGZXAPI IGZXCA31 IGZXCDA IGZXD24 IGZXDMR IGZXJNI2 IGZXLPIO IGZXLPKA IGZXLPKB IGZXLPKC IGZXLPKD IGZXLPKE IGZXLPKF IGZXLPKG IGZXPK2
Fix information
Fixed component name
LE ENT COBOL LI
Fixed component ID
568819812
Applicable component levels
R7B0 PSY UI77335
UP21/10/01 P F109
R7C0 PSY UI77337
UP21/10/01 P F109
R7D0 PSY UI77339
UP21/10/01 P F109
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.
[{"Line of Business":{"code":"LOB35","label":"Mainframe SW"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SS6SG3","label":"Enterprise COBOL for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7D0"}]
Document Information
Modified date:
02 October 2021