Siemens Network Hardware SM2 monitoring system 用户手册

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页码 500
26
U3585-J-Z125-8-76
Performance expectations of the user
SM2 monitoring program
The sum of single-step and multi-step transactions required for handling one application is
called an operation.
The characteristic criteria for describing performance expectations are:
Transaction rate
Sum of all successfully completed transactions per unit of time
Response time
Time required for processing by the DP system
Number of simultaneously active users.
The monitored values for these characteristics are determined in SM2 by the monitoring
program BCAM-CONNECTION (page 35), RESPONSETIME (page 45) and UTM
(page 53).
Batch processing criteria
In batch processing, the unit of DP processing is a job.
Throughput rate
Number of successfully processed jobs per unit of time
Dwell time
Time required for processing a job
For the individual user, a satisfactory performance (short response time, short dwell time)
is obtained if the required resources are available when they are requested. This
requirement can easily be meet if utilization of the requested resources (in particular of the
input/output devices) is kept to a minimum.
The DP system performance, on the other hand, is characterized by the transaction and
throughput rates, where maximum utilization of the resources is desirable for economic
reasons.
These contradictory performance requirements relating to resource utilization can be
fulfilled only by carefully planning the workload and the associated resource requirements.