IIRC, Z/OS address space constraints may come into play: MEMLIMIT, in JCL, or system via SMFPRMXX “is the limit on the use of virtual storage above 2 gigabytes for a single address space“
Your site’s SMF exits, IEFUSI and the like, can (silently) muck things up. Ken On Fri, Jul 17, 2020at 12:59 PM Lizette Koehler <stars...@mindspring.com> wrote: > Fixed formatting > > > > D OMVS,LIMIT > > > > OMVS 0011 ACTIVE OMVS=(00) > > SYSTEM WIDE LIMITS: LIMMSG=NONE > > CURRENT HIGHWATER SYSTEM > > USAGE USAGE LIMIT > > MAXPROCSYS 200 259 2100 > > MAXUIDS 26 31 500 > > MAXPTYS 0 1 800 > > MAXMMAPAREA 8428 8428 40960 > > MAXSHAREPAGES 47918 254576 32768000 > > IPCMSGNIDS 17 20 500 > > IPCSEMNIDS 11 21 2000 > > IPCSHMNIDS 3 6 500 > > IPCSHMSPAGES 0 26 786432 > > IPCMSGQBYTES --- 7812 2147483647 > > IPCMSGQMNUM --- 2 10000 > > IPCSHMMPAGES --- 256 12800 > > SHRLIBRGNSIZE 111149056 111149056 444596224 > > SHRLIBMAXPAGES 0 0 65536 > > MAXUSERMOUNTSYS 0 0 0 > > MAXUSERMOUNTUSER 0 0 0 > > MAXPIPES 59 170 15360 > > > > Lizette > > > > > > -----Original Message----- > From: Lizette Koehler <stars...@mindspring.com> > Sent: Friday, July 17, 2020 9:46 AM > To: 'IBM Mainframe Discussion List' <IBM-MAIN@LISTSERV.UA.EDU> > Subject: RE: Java memory limit > > > > I think the answer is it depends. > > > > How much memory is available - as I recall JAVA can take it all > > > > In OMVS - Ua -limit > > > > core file 8192b > > cpu time 85835 > > data size unlimited > > file size unlimited > > stack size unlimited > > file descriptors 64000 > > address space 1657832k > > memory above bar 2048m > > > > > > from MVS Console - D OMVS,LIMIT > > > > OMVS 0011 ACTIVE OMVS=(00) > > SYSTEM WIDE LIMITS: LIMMSG=NONE > > CURRENT HIGHWATER SYSTEM > > USAGE USAGE LIMIT > > MAXPROCSYS 200 259 2100 > > MAXUIDS 26 31 500 > > MAXPTYS 0 1 800 > > MAXMMAPAREA 8428 8428 40960 > > MAXSHAREPAGES 47918 254576 32768000 > > IPCMSGNIDS 17 20 500 > > IPCSEMNIDS 11 21 2000 > > IPCSHMNIDS 3 6 500 > > IPCSHMSPAGES 0 26 786432 > > IPCMSGQBYTES --- 7812 2147483647 > > IPCMSGQMNUM --- 2 10000 > > IPCSHMMPAGES --- 256 12800 > > SHRLIBRGNSIZE 111149056 111149056 444596224 SHRLIBMAXPAGES 0 0 65536 > MAXUSERMOUNTSYS 0 0 0 MAXUSERMOUNTUSER 0 0 0 MAXPIPES 59 170 15360 > > > > > > So depending on how many processes you are going to run, what type of code > - simple or complex > > > > JAVA could take as much as you can give it > > > > Do you have a specific issue you are trying to resolve? > > > > Lizette > > > > > > -----Original Message----- > > From: IBM Mainframe Discussion List < <mailto:IBM-MAIN@LISTSERV.UA.EDU> > IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Peter > > Sent: Friday, July 17, 2020 9:30 AM > > To: <mailto:IBM-MAIN@LISTSERV.UA.EDU> IBM-MAIN@LISTSERV.UA.EDU > > Subject: Java memory limit > > > > Hello > > > > We are running IBM RDZ on zOS 2.3 with java 6. What's the maximum memory > limit for java ? Is it based on Java version or zOS version ? > > > > Peter > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send email > to <mailto:lists...@listserv.ua.edu> mailto: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 > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
