No more assumptions on my part, so what tools would show the correct time(s) for real time monitoring if not SDSF ? RMF? Omegamon? And now that you throw Java in the mix or USS spanned tasks I don't think any real time monitor can account for all CPU time GCPU and zIIPTIME
I'm thinking none of the current tools can. Carmen Vitullo ----- Original Message ----- From: "Peter Relson" <rel...@us.ibm.com> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Wednesday, February 27, 2019 8:09:40 AM Subject: Re: CPU time and zIIP <snip> I see CPUtime as 4093.12, GCPUtime is 2187.06 and Ziiptime is 2.17, that's not adding up since all other times, other than accumulated time is zero </snip> There is no reason these should add up, although I don't have the information about where the "source" is for GCPUTime and "zIIP time", but I can guess. CPU time includes preemptable SRB time and non-preemptable SRB time. GCPU time likely does not (the field I am thinking of does not). zIIP time certainly does not include non-preemptable SRB time or any preemptable SRB time other than for enclave SRBs and even then only enclave SRBs that are running on zIIPs. And it will include task time for cases such as Java. <snip> I assumed since SDSF compartmentalized the zIIP, zAAP, and zICP times that they must not be included in the CPU-Time field. Like Carmen noted, when I add the GCP-Time, zIIP-Time, zAAP-Time, and zICP-Time it does not calculate out to be the same as the CPU-Time or ECPU-Time amount. </snip> Not a good assumption. These times were not "compartmentalized" by SDSF itself. SDSF displays using the "compartments" that the system uses for various reasons. It would be extremely surprising if the "addition" matched the CPU-Time or ECPU-Time. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- 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
