great info, thanks for the link Brian
Carmen Vitullo ----- Original Message ----- From: "Brian Chapman" <[email protected]> To: [email protected] Sent: Tuesday, February 26, 2019 10:14:08 AM Subject: Re: CPU time and zIIP Thanks Peter. Here is the IBM document that I based my assumptions of the SDSF fields. *CPU-Time* Accumulated CPU time consumed by and on behalf of the address space, for the current job step, in seconds. SDSF obtains this value from RMF, as follows: ASCBEJST + ASCBSRBT + ASSBASST (source field R791TCPU) where *ASCBEJST* is elapsed job step time *ASCBSRBT* is accumulated SRB time *ASSBASST* is the CPU time consumed by preemptible class SRBs running on behalf of this address space, in milliseconds *ECPU-Time* Total CPU time consumed by and within the address space, for the current job step, in seconds. SDSF obtains this value from RMF, as follows: ASCBEJST + ASCBSRBT + ASSBPHTM (source field R791TCPC) where *ASCBEJST* is elapsed job step time *ASCBSRBT* is accumulated SRB time *ASSBPHTM* is the CPU time consumed by preemptible class SRBs running in this address space, in milliseconds (threads plus enclaves) https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.3.0/com.ibm.zosmfsdsf.jobresources.help.doc/izusfhpJobActiveSystemUse.html 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. Thank you, Brian Chapman On Tue, Feb 26, 2019 at 9:21 AM Peter Relson <[email protected]> wrote: > If the comment is correct that the SDSF display is using ASCBEJST, then > the statement > "ZIIP is not reported as part of CPU." > is not correct with respect to that display. > > ASCBEJST includes all time, whether standard CP or zIIP. > There are additional fields, such as ASSB_TIME_ON_CP, that do not include > zIIP. > > Fields in SMF records do use ASSB_TIME_ON_CP rather than ASCBEJST. For > those fields, the statement is correct. > > I wasn't sure in what way the OP concluded that zIIP was or was not > included when he wrote "must not be true" and "I'm thinking it is not". > > Peter Relson > z/OS Core Technology Design > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
