Viewing IBM Tivoli Composite Application Manager for WebSphere Application Server performance data
To view IBM Tivoli® Composite Application Manager (ITCAM) for WebSphere® Application Server monitoring information in Tivoli Performance Viewer, you must enable the counters.
About this task
The Tivoli Performance Viewer presents the performance data in charts. Use the charts to determine how performance metrics have changed over a time period and whether WebSphere Application Server is experiencing any performance issues.
Counters | Descriptions of counters |
---|---|
90%CPUUsage | Ninety percent median of the processor usage of requests in milliseconds, where 90% of the response times are less than this value. This counter is only available at application level. There
is a maximum limit on the number of processor usage requests stored
to calculate the 90% processor usage median. You can set this limit
by defining the The
90% median is calculated by taking the sample at the 90% of the total
samples. The formula to calculate the 90% median sample is:
For
example, if the current sample size is 31, then the formula is: (31
- 1) * 0.9 = 27 and the 27th sample is returned.If
the result is not an integer, for example, when the current sample
size is 32, then the formula is: |
90%ResponseTime | Ninety percent median of requests in milliseconds, where 90% of the response times are less than this value. This counter is available only at the application level. There is a maximum
limit on the number of request response times stored to calculate
the 90% response time median. Set this limit by defining the The 90% median is calculated by taking the sample at
the 90% of the total samples. The formula to calculate the 90% median
sample is:
For
example, if the current sample size is 31, then the formula is: (31
- 1) * 0.9 = 27 and the 27th sample is returned.If
the result is not an integer, for example, when the current sample
size is 32, then the formula is: |
AverageCPUUsage | The average processor usage of requests in milliseconds. |
AverageResponseTime | The average response time of requests in milliseconds. |
LastMinuteAverageCPUUsage | The average processor usage of requests completed in the last minute (when the counter value is retrieved) in milliseconds. |
LastMinuteAverageResponseTime | The average response time of requests completed in the last minute (when the counter value is retrieved) in milliseconds. |
MaximumCPUUsage | The most intensive processor usage since the counter is enabled or reset in milliseconds. This counter is available only at the application level. |
MaximumResponseTime | The slowest response time since the counter is enabled or reset in milliseconds. This counter is available only at the application level. |
MinimumCPUUsage | The least intensive processor usage since the counter was enabled or reset in milliseconds. This counter is available only at the application level. |
MinimumResponseTime | The fastest response time since the counter is enabled or reset in milliseconds. This counter is available only at the application level. |
RequestCount | The number of requests completed since the counter is enabled or reset. |
Procedure
- Start the administrative console.
- In the navigation pane, click .
- Expand Performance Modules and click ITCAM Application Performance.
- To refresh the view, click Tivoli Performance Viewer and select the application_server instance for which you want to view performance data.