Measuring data requests (Performance Monitoring Infrastructure Request Metrics)

Performance Monitoring Infrastructure (PMI) Request Metrics collects data by timing requests as they travel through WebSphere Application Server components. This data helps to identify run time and application problems. PMI Request Metrics logs the time spent at major points, such as the Web server plug-in, Web container, enterprise bean container and database. These points are recorded in logs and can be written to Application Response Measurement (ARM) agents used by Tivoli monitoring tools. Request metrics provides response times for remote EJB containers (by way of IIOP), the Web server plug-in, servlets (Web containers) and Java Database Connectivity (JDBC) drivers.

If you plan to run in a production environment, plan to filter by IP address - a specific IP address using a synthetic transaction generator. If you choose to enable request metrics, but not filter by a specific IP address, performance can be impacted significantly.

Learn more about Request Metrics by reviewing this section, including:

Performance Monitoring Infrastructure Request Metrics
Application Response Measurement
Performance Monitoring Infrastructure Request Metrics trace filters
Performance Monitoring Infrastructure Request Metrics data output
Generating trace records from Performance Monitoring Infrastructure Request Metrics
Tivoli performance monitoring and management solutions

 

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IBM is a trademark of the IBM Corporation in the United States, other countries, or both.

 

Tivoli is a trademark of the IBM Corporation in the United States, other countries, or both.