First allocation in subpool 1, secondary allocations in subpool 2. this is true for heap and Stack allocation.
I remember a very useful IBM presentation on this topic which is titled "stacks are simple, heaps are Fun". you will find it using Google hth Kind regards Bernd --- Original-Nachricht --- Von: Charles Mills Betreff: Re: LE QuestionT Datum: 06.06.2017, 17:06 Uhr An: IBM-MAIN@LISTSERV.UA.EDU In-line. Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of scott Ford Sent: Tuesday, June 6, 2017 7:06 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: LE QuestionT > I need some help understanding LE and Cobol. I ran our Cobol STC with RPT options and STG options on, i see a large like 700K Heap size. 700K is not large these days LOL. I allocate 3MB on startup! > My first question is where does LE place the HEAP ( what Subpool ) ? Don't know but should be in the LE books. Above the 16MB line. I have a feeling of subpool zero but that may just be an assumption on my part. > Secondly, is that HEAP storage freed anytime during the running of a STC written in COBOL ? We do not use CEEGTST , etc ... You can control how that works, at least in C/C++. If you exhaust the heap it allocates more (and you can control the increment). You can control what happens if the heap contracts: is the storage freed, or kept around in case it is needed again, saving the overhead of another GETMAIN? You can run a storage report at end of job to see if you have any leaks. You turn it on with a HEAPCHK statement in CEEOPTS DD. Makes things slow during testing. CM ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu <http://listserv.ua.edu> with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
