Starting a new thread after @Peter dryly points out that freeing all of LE's storage in the middle of a run is "unlikely to be a good idea."
How DO I choose a subpool? Here's the bigger picture. I am using https://www.ibm.com/docs/en/zos/3.1.0?topic=descriptions-r-admin-irrseq00-racf-administration-api ADMN_XTR_RESOURCE. For those of you unfamiliar (and assuming I am reading the documentation correctly) the caller specifies a subpool 0 < n < 128 and the RACF service does a GETMAIN for the storage in which to return the requested data. The caller is expected to free the storage. (Personally, I don't like that design. I prefer the convention in which the caller provides an area and its length, and the service gives a return code if the area is too small. But that is neither here nor there; the RACF team did not ask me for advice.) I have proof of concept code working. The POC code simply ignores the FREEMAIN problem and lets end-of-jobstep solve the issue. I am moving on now to "production" code and my idea was to issue a FREEMAIN for the entire specified subpool after every ten calls or so (plus after the last, of course). Why not after every call? The amount of storage is not very great (for the particular profiles I am retrieving) and I thought that issuing fewer FREEMAINs would be lower overhead. So, what subpool should I use? I picked 1 because I'm a programmer so if you ask me to pick a number that is not 0, I pick 1. Apparently that was, in @Peter's words, unlikely to be a good idea. Is there guidance anywhere on how to choose a "user" subpool? The RACF service documentation provides no guidance that I saw. The MVS Assembler Services Guide seems to just say "pick a subpool." I suspect LE documents somewhere that they use subpool 1, but they certainly don't shout it from the rafters. Is there anything, anywhere -- IBM, SHARE, a Colin Plaice blog -- that offers guidance on how to pick a subpool, or how to avoid picking a problematic subpool? How to avoid subpool collisions? Or to make the question more basic, what subpool SHOULD I use for my IRRSEQ00 calls? Thanks, Charles ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
