Performance Monitoring Infrastructure settings
Use this page to specify settings for performance monitoring, including enabling performance monitoring, selecting the Performance Monitoring Infrastructure (PMI) module and setting monitoring levels.
To view this console page, click...
Servers | Application Servers | server | Performance Monitoring Infrastructure (PMI).
Configuration tab
- Enable Performance Monitoring Infrastructure (PMI)
Specify whether the appserver attempts to enable PMI. If an appserver is started when the PMI is disabled, you have to restart the server in order to enable it.
- Use sequential counter updates
Specify whether access to PMI counters (for example, updates to the counters) is sequential. There is some performance overhead associated with enabling sequential update. The default setting is false.
- Currently monitored statistic set
Specify a pre-defined set of PMI statistics for all components in the server. As part of fine-grained control feature, WAS provides new statistic sets, which are pre-defined, fixed server-side sets based on the PMI statistic usage scenarios. This enhancement allows a set of statistics to be enabled via a single action or call. The following statistic sets are defined:
- None
- All statistics are disabled.
- Basic
- Provides basic monitoring for appserver resources and applications. This includes J2EE components, HTTP session information, CPU usage information, and the top 38 statistics. This is the default setting.
- Extended
- Provides extended monitoring, including the basic level of monitoring plus workload monitor, performance advisor, and Tivoli resource models. Extended provides key statistics from frequently used WAS components.
- All
- Enables all statistics.
- Custom
- Provides fine-grained control with the ability to enable and disable individual statistics.
Runtime tab
- Use sequential counter updates
Specify whether access to PMI counters (for example, updates to the counters) is sequential. There is some performance overhead associated with enabling sequential update. The default setting is false.
- Persist my changes
Specify whether changes to the runtime are also persisted for use on subsequent server startups, and not just the current server runtime. The default setting is false.
Selecting the Persist my changes option ensures that the counter settings are retained after you restart the server. This option itself does not remain selected the next time you come to the panel.
- Currently monitored statistic set
Specify a pre-defined set of PMI statistics for all components in the server.
As part of fine-grained control feature, WAS provides new statistic sets, which are pre-defined, fixed server-side sets based on the PMI statistic usage scenarios. This enhancement allows a set of statistics to be enabled via a single action or call. The following statistic sets are defined:
- None
- All statistics are disabled.
- Basic
- Provides basic monitoring for appserver resources and applications. This includes J2EE components, HTTP session information, CPU usage information, and the top 38 statistics. This is the default setting.
- Extended
- Provides extended monitoring, including the basic level of monitoring plus workload monitor, performance advisor, and Tivoli resource models. Extended provides key statistics from frequently used WAS components.
- All
- Enables all statistics.
- Custom
- Provides fine-grained control with the ability to enable and disable individual statistics.
Related tasks
Monitor overall system health
Enabling PMI using the console
Related Reference
Reference topic