The key to running MVS efficiently under VM was to specify a small region for MVS within VM. This would result with all the VM pages for MVS being in and MVS would page in and out. A large region for MVS would result in MVS and VM both paging in and out, working against each other. So look at Linux memory utilization and trim the memory to just above the actual utilization. I'm guessing 10% over utilization but experiment with the amount and monitor paging I/O. If no paging I/O trim a little, then once you start to get paging go up a little bit until it stops.
On Wed, Aug 26, 2020 at 10:54 AM Mauri Kanter <itzuv...@013.net.il> wrote: > > Hi: > > BTW, speaking of running zCX under z/OS under z/VM ... > > Does anyone know whether (or not) the DAT translation is kept in the TLBs > (CAM memory)? > > I don't know why, but I think there was a limit on the levels of > hardware-assisted DAT translation ... > > I want to know whether running zCX on a z/OS under z/VM is efficient > hardware-wise ... > > Mauri > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
