Two performance advisors are available: the Performance and Diagnostic Advisor and the performance advisor in Tivoli Performance Viewer.
The Performance and Diagnostic Advisor runs in the JVM process of application server; therefore, it does not provide expensive advice. In a stand-alone application server environment, the performance advisor in Tivoli Performance Viewer runs within the application server JVM.
The performance advisor in Tivoli Performance Viewer (TPV) provides advice to help tune systems for optimal performance and provide recommendations on inefficient settings by using collected Performance Monitoring Infrastructure (PMI) data. Obtain the advice by selecting the performance advisor in TPV.
In a Network Deployment environment, the performance advisor in Tivoli Performance Viewer runs within the JVM of the node agent and can provide advice on resources that are more expensive to monitor and analyze. The Tivoli Performance Viewer advisor requires that you enable performance modules, counters, or both. The following chart shows the differences between the Performance and Diagnostic Advisor and the Tivoli Performance Viewer advisor:
| Performance and Diagnostic Advisor | Tivoli Performance Viewer advisor | |
| Start location | Application server | Tivoli Performance Viewer client |
| Invocation of tool | Administrative console | Tivoli Performance Viewer |
| Output |
| Tivoli Performance Viewer in the administrative console |
| Frequency of operation | Configurable | When you select refresh in the Tivoli Performance Viewer administrative console |
| Types of advice |
Performance advice:
Diagnostic advice:
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Performance advice:
|