Performance measurement tools for VM/370
P. H. Callaway · IBM Systems Journal · 1975
The data collection, display, and analysis tools and techniques found desirable to support the smooth running of a VM/370 installation appear to be diverse, yet their use must be weel coordinated. In a summary, a user's productivity may be enhanced by linking the nature of his terminal activity to the performance of the system by making available to him measures of utilization and contention for major resources. Operators and system analysts may monitor the performance of the system in real time and attempt to diagnose and correct undesirable load situations. Full analysis of severe or complex performance problems may be conducted off-line when necessary and special user measurement requirements may be satisfied. Basic trends in resource utilization and system performance are available to management in summary form. Although these facilities have been developed and put to use subsequent to initial installation of the system, they appear to provide the kind of services that should be an integral part of control program functions, since they help users, maintenance programmers and installation management to strive toward making optimal use of their computing system.