1. IiRC, V=R is no longer supported. I could be wrong -- it happens sometimes.
2. The reason for the 'high' frame count is because the job needs them. Limiting them, yourself if it were possible, would strangle the job. z/OS (srm/wlm) knows best as to who needs what and, in general, it's better not to second guess. - -teD - Original Message From: Staller, Allan Sent: Tuesday, August 4, 2015 10:56 To: IBM-MAIN@LISTSERV.UA.EDU Reply To: IBM Mainframe Discussion List Subject: Re: Limit number of frames of real storage per job MCCAFCTH is not applicable in this case. You are correct that this is a LPAR level control. The only "out of the box" solution I can think of is to run the job "V=R' . See VRREGN in SYS1.PARMLIB(IEASYS00). NOTE: An IPL is*REQUIRED* to change this value..... Of course, you could write a "driver program" to do what you want. i.e. obtain the real storage and then invoke JAVA. JZOS *may* be of some help here. HTH, <snip> I would like to ask more experienced sysprogs regarding real storage manager. Is it possible to limit number of frames of real storage on job level? The MEMLIMIT/REGION parameters limit virtual memory of whole address space however I would like to limit the only real memory while the virtual memory remain as it is. The reason why I need it; I would like to test the performance of a (Java) application in case of lack of frames of real storage. In case of shortage of real storage a paging is expected. And I would like to simulate this situation to see impact a performance of the Java application. I have found MCCAFCTH (defined in IEAOPTxx) but this seems to be LPAR (not job) specifics and moreover this defines length of available frame queue (not number of frames per job). Thx for hints. </snip> ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@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
