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Tuning UNSTRING function in cobol

 
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vijikesavan

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Joined: 04 Oct 2006
Posts: 118
Location: NJ, USA

PostPosted: Fri Oct 06, 2006 7:31 pm    Post subject: Tuning UNSTRING function in cobol
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Hi,
I have a COBOL program which has high CPU usage in a UNSTRING function. The code is given below. Any suggesstion to improve this plsss..

UNSTRING WS-NETW-RECORD DELIMITED BY '|'
INTO
WS-NETW-DATE COUNT IN WS-CTR-01
S-NETW-ML-NBR COUNT IN WS-CTR-02
WS-NETW-NET-WORTH-AMT COUNT IN WS-CTR-03
WS-NETW-MUTL-FND-AMT COUNT IN WS-CTR-04
WS-NETW-BOND-AMT COUNT IN WS-CTR-05
WS-NETW-ISO-CURRENCY COUNT IN WS-CTR-06
WS-NETW-FOREIGN-AMT COUNT IN WS-CTR-07
WS-NETW-MARGIN-AMT COUNT IN WS-CTR-08
WS-NETW-CASH-BAL-AMT COUNT IN WS-CTR-09
WS-NETW-MONEY-MKT-AMT COUNT IN WS-CTR-10
WS-NETW-EQUITY-AMT COUNT IN WS-CTR-11
WS-NETW-EQUITY-LONG-AMT COUNT IN WS-CTR-12
WS-NETW-EQUITY-SHRT-AMT COUNT IN WS-CTR-13
WS-NETW-OPTION-LONG-AMT COUNT IN WS-CTR-14
WS-NETW-OPTION-SHRT-AMT COUNT IN WS-CTR-15
WS-NETW-MAINT-RQMT-AMT COUNT IN WS-CTR-16
WS-NETW-MARGN-LONG-AMT COUNT IN WS-CTR-17
WS-NETW-MARGN-SHRT-AMT COUNT IN WS-CTR-18
WS-NETW-TOT-CSH-SEC-AMT COUNT IN WS-CTR-19
WS-NETW-MARGN-PRTN-AMT COUNT IN WS-CTR-20.
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mmwife

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Joined: 30 May 2003
Posts: 1592

PostPosted: Sun Oct 08, 2006 12:24 am    Post subject:
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The only solution I can think of is to code the logic yourself, using ref/mod and looping thru the sending field looking for the delim and keeping track of the char count.

The process you use for the UNSTRING is pretty straightforward, so I don't see any opportunity for efficiencies.

If you have'nt already, try making your cntrs COMP or COMP-3 and see what that does. If you're uding DISPLAY cntrs the data conversion routines can add overhead.
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vijikesavan

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Joined: 04 Oct 2006
Posts: 118
Location: NJ, USA

PostPosted: Sun Oct 08, 2006 8:25 pm    Post subject: Re: Tuning UNSTRING function in cobol
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Thanks for the reply. I tried using the ref mod logic, but i seems to not work as the input file's structure is varying.
Trying some other alternatives for this.
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mmwife

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PostPosted: Sun Oct 08, 2006 9:26 pm    Post subject:
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It can work w/VB files. Search the forums for "variable" or "VB". to understand how to process VB files.

Have you tried changing the counters to COMP?
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hey_its_me
Warnings : 1

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Joined: 23 Aug 2006
Posts: 14
Location: USA

PostPosted: Mon Oct 09, 2006 5:28 pm    Post subject: Re: Tuning UNSTRING function in cobol
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Hi all,

Could you please clarify my doubt on the above code.
Here with the unstring clause they have specified the main variable from which the string is unstringed into variables which are delimited by '|'.

My doubt is on the use of count in in the code.

Could you please clarify the doubt on the above given subject.


With regards,
Anil Kumar
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