Hi everybody,
in a customer shop we use IBM APA to trace some cpu-bound applications in
order to find out in which modules and statement applications use the most
of the cpu.
For a particular job APA shows a big "SYSTEM" cpu usage on IGZXLPKA module
as you can see in the following data.
Name Description Percent of CPU Time * 10.00% .0.6%
*....1....2....3....4....5....6....7...
SYSTEM System/OS Services 78.03
**************************************
> LERUNLIB Language Environment 77.88
**************************************
Runtime
> IGZXLPKA COBOL 2 Module 77.88
**************************************
> IGZBXXMU COBOL 2 Module 31.51 ****************
> IGZ@BCD COBOL 2 Module 12.76 ******
> IGZXFPW COBOL 2 Module 12.43 ******
> FPVDFPCX CSECT in IGZXLPKA 9.53 *****
> IGZ@CV COBOL 2 Module 6.17 ***
> IGZXPR2 COBOL 2 Module 5.40 ***
> IGZ@DSP COBOL 2 Module 0.02
> IGZXFCAL COBOL 2 Module 0.02
> IGZ@DCS2 COBOL 2 Module 0.01
> IGZXFCA4 COBOL 2 Module 0.00
> MVS MVS System 0.11
> SVC SVC Routines 0.03
> DB2 DB2 Subsystem 0.00
DB2SQL SQL Processing 12.13 ******
APPLCN Application Code 9.70 *****
NOSYMB No Module Name 0.11
In such a shop applications are Cobol (main V4 moving to V5) and this case
is a DB2 batch applications. There're different programs involved
dynamically called (to prevent questions, the whole shop is the same and
only this job shows this behaviour). There's a mix between V4 and V5 in the
call chain.
I was not able to find out lots of infos about the IGZXLPKA module but it's
manages dynamic call.
I've tried with a different programs-chain (written to test the call up to
5 level of nesting) but nothing similar happened.
Any hint ?
Thanks a lot in advance.
Massimo
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