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https://aset.az.gov/service/mainframe/mainframe-prime#:~:text=Mainframe%20Prime%20covers%20Hosted%20mainframe%20Central%20Processing%20Unit,utilization%20covers%20various%20processing%20workloads%20on%20the%20Mainframe.
https://searchdatacenter.techtarget.com/answer/Converting-CPU-hours-to-MIPS-Mainframe-capacity-planning-process
CPU seconds to MIPS conversion example. A mainframe job has used 100 CPU seconds during one minute -- it is a multitask job. The system is an IBM 2064 Model 1C5 (1085 MIPS, EUM = 217 MIPS).The average consumption speed of this job is 100 x 217/60 = 362 MIPS.. Cutting CPU costs on the mainframe and improving the system's operational efficiency, however, are not always the same thing, …
https://aset.az.gov/service/mainframe/mainframe-prime
Mainframe Prime covers Hosted mainframe Central Processing Unit (CPU) utilization occurring between the hours of 7:00 AM and 5:00 PM on regular business days. This service is currently provided through Z Cloud. The Mainframe CPU utilization covers various processing workloads on the Mainframe. Those workload types offered on the Hosted Mainframe include: CICS Processing, IMS/DC Processing, Batch …
https://www.computereconomics.com/article.cfm?id=1184
Figure 1 provides mainframe utilization metrics over the previous five quarters across organizations in all industry sectors. CPU usage is measured over a 30-day period, 24 hours a day. The 30-day period is limited to four weekends. It must include a month-end close, and it must not include a holiday.
https://www.ibm.com/docs/zosbasics/com.ibm.zos.zmainframe/zconc_mfhwPUs.htm
Mainframe hardware: Processing units. Mainframe concepts. Early mainframes had a single processor, which was known as the central processing unit (CPU). Today's IBM® mainframes have a central processor complex (CPC), which may contain several different types of z/Architecture® processors that can be used for slightly different purposes.
http://longpelaexpertise.com/ezine/HowBigMainframe.php
Traditionally CPU seconds, or the number of seconds a CPU is actually in use, was a measurement of how much work a processor performed. CPU seconds was, and often still is, used as a measurement for charging mainframe usage. z/OS records the number of CPU seconds that each unit of work has consumed, providing an excellent way of measuring the ...
https://www.ibm.com/docs/en/SS2JNN_5.1.0/com.ibm.omegamon_xezos.doc/attr_syscpuutil.htm
System CPU Utilization attributes. The System CPU Utilization Attribute Group provides information about CPU usage for the system. In an LPAR environment, this group also provides partition management statistics. 4 Hour MSUs Four-hour rolling average value of the millions of service units (MSUs) per hour. The value is updated every five minutes.
https://en.wikipedia.org/wiki/CPU_time
CPU time is the amount of time for which a central processing unit was used for processing instructions of a computer program or operating system, as opposed to elapsed time, which includes for example, waiting for input/output operations or entering low-power mode. The CPU time is measured in clock ticks or seconds. Often, it is useful to measure CPU time as a percentage of the CPU's capacity, which is …
http://www.longpelaexpertise.com.au/ezine/CPUtoMSUMIPS.php
So, if my Connect: Direct consumption over the peak four hours was: 10am - 200 CPU seconds; 11am- 300 CPU seconds; Noon - 90 CPU seconds; 1pm - 10 CPU seconds; 4HRA MSUs = (200+300+90+10)* 0.0092 = 5.52 MSUs. Conclusion. Once you get the hang of it, converting CPU seconds to MSUs, MIPS or 4HRA MSU is straightforward. However, be careful.
https://en.wikipedia.org/wiki/Mainframe_computer
A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.A mainframe computer is large but not as large as a supercomputer and has more processing power ...
http://longpelaexpertise.com/ezine/SavingsOptionsMainframe.php
Many mainframe users will have a period of each month where CPU usage is particularly high. I've seen this from end of month processing, when employees are paid, or product delivery dates. If there is such a monthly peak, then this is the figure that will be used for capacity-based software charging.
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