Siemens SM2 monitoring system, U3585-J-Z125-8-76 1 manual CPU Utilization, Tpr, Sih, Idle

ACTIVITY report	SM2 reports
Monitoring information
(VM)	This abbreviation will be output in the first line if the system
	monitored is a VM2000 system.
CPU UTILIZATION
(2 LM’S)	This additional information indicates how many logical machines
	were active.

Proportion of CPU time during which the CPU was in the following processor states:

TU	User programs
TPR	Processing of program interrupts
SIH	Analysis of program interrupts
IDLE	Inactive
	For systems comprising a number of logical machines, mean values
	for all active logical machines are output.
	The sum of the TU, TPR, SIH and IDLE times is always 100%. For
	evaluation of the TU and TPR percentages, see section “Accuracy
	of the SM2 data” on page 343ff.
	In the monitoring cycle in which reconfiguration took place, these
	values and the number of I/O operations are marked as invalid (*).
	SM2 supplies a STOP time for each logical machine. This value
	indicates the proportion of time during which the relevant logical
	machine was inoperable.
	The STOP time is output in the SM2 report CPU and by SM2R1 in
	the *CPU report group when the parameter PROCESSOR-
	SPLITTING=*YES is specified.
/390	This value is supplied only on SR2000 machines. It indicates the
	relative proportion of TU that has elapsed in /390 mode.

Note

The monitored data on CPU utilization and on service units is based on native CPU time (see “CPU time and CPU service units on SR2000” on page 446 of the glossary).

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