The performance of a UTM application is influenced by various factors. The determining factors lie on the one hand in the system environment of a UTM application (configuration of the working memory, performance capabilities of peripherals) and on the other hand in the UTM application itself (configuration of the application and structure of the program units). Performance checks should be carried out at regular intervals while an application is running, in order to detect performance bottlenecks at an early stage. The following tools are available for checking the performance of UTM applications:
Software Monitor openSM2
UTM event monitor KDCMON with the evaluation tool KDCEVAL
information services of UTM administration
openSM2 software monitor
You can monitor the performance of the UTM application using the openSM2 software monitor. For details, refer to section "Monitoring with openSM2".
UTM event monitor KDCMON
The UTM event monitor KDCMON is provided for UTM users. KDCMON is a function integrated in openUTM and records information on the runtime characteristics of UTM applications and user program units. If performance bottlenecks are detected, then you can collect data using KDCMON. You evaluate the data collected with the KDCEVAL tool. You can then carry out a detailed analysis based on this evaluation. See "Evaluation lists".
KDCMON is therefore an important tool for assessing the performance of a UTM application. KDCMON can be used to produce detailed performance evaluations when measurements using the UTM administration point to a performance bottleneck.
Information services in the UTM administration
Some information on diagnosing performance bottlenecks can also be queried using the UTM administration information services, e.g. via the KDCINF administration command or via the graphical administration tools WinAdmin/WebAdmin. The KDCINF STATISTICS command provides data on the utilization of individual selected components of your UTM application (e.g. clients). The KDCSINF STATISTICS command also allows you to obtain general statistical information on the utilization of the entire application and obtain statistics for performance control as well as for assessing the performance of your UTM application during operation, for example application load, page pool utilization, number of users currently signed on, number of dialog or asynchronous transactions performed per second, open dialog and asynchronous services etc.
The KDCINF PAGEPOOL command supplies further, more detailed data on the current utilization of the page pool.
For detailed information on KDCINF, see the openUTM manual “Administering Applications”.
If you administer the UTM application with the WinAdmin or WebAdmin graphical administration workstation, then you can also display the statistical data graphically.