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sakthikumarT
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Joined: 09 Apr 2009
Posts: 50
Location: Bangalore
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Yeah i got it  Thanks a lot.
Now my last question:
IF i execute pgm1 in CICS region,(it means that a copy of the load module for pgm1 which might be taken from (LPAR or DFHRPL) and it is stored in CICS MEMORY)
so i have pgm1,pgm2,..........pgm999,pgm100000
there will 100000 copies of load module which is available in the CICS Memory.
say if 1 lakhs different programs are running simultaneously. obviously CICS memory gets filled..? it might be a huge probelm right??
at This point of time INternally what kind of things will happen inside the CICS??? 
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Robert Sample
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Location: Dubuque, Iowa, USA
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CICS can run short on memory. This is called a short-on-storage condition and in some regions is a daily occurrence (depending on how big the programs are and how many are running and whether they are 24-bit or 31-bit, among other things). CICS handles memory management and recognizes when it goes short-on-storage (and when it stops being SOS) so while I cannot say for sure, never having worked on CICS internal system software, I suspect CICS can handle excessive numbers of transactions and programs. I don't know the exact mechanisms -- you would have to discuss this issue with IBM to find out -- but there have been regions running 10,000 terminals so the capacity to handle large volumes of work is there.
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| at This point of time INternally what kind of things will happen inside the CICS??? icon_confused.gif |
You would have to contact CICS support at IBM to get this answered. Depending upon your support contract, you may or may not be able to get an answer. |
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Terry Heinze
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| At one time, many moons ago, when multiple occurrences of the same program were being executed, only 1 copy of the PROCEDURE DIVISION was in memory, and each user had their own copy of WORKING STORAGE and COMMAREA of course. |
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dick scherrer
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Unless i missed a memo (which happens more and more often ), re-entrant code still works this way. The use count is incremented and decremented to determine if the module is currently "in use".
d |
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sakthikumarT
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Joined: 09 Apr 2009
Posts: 50
Location: Bangalore
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Thanks Mr Robert.
Could you able give the Link for CICS SUPPORT AT IBM.? |
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enrico-sorichetti
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Joined: 14 Mar 2007
Posts: 10873
Location: italy
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a google search for "CICS SUPPORT AT IBM"
would have taken the same time and effort as asking
and got You a faster reply
I just tried it! |
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sakthikumarT
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Joined: 09 Apr 2009
Posts: 50
Location: Bangalore
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| Thanks a Lot Mr. enrico-sorichetti |
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dbzTHEdinosauer
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Joined: 20 Oct 2006
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Location: porcelain throne
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| your are welcome. |
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