You can use the Tivoli Performance Viewer (TPV) to view Performance Monitoring Infrastructure (PMI) data in chart or table form.
Before you begin
TPV monitors the performance activity of all servers on a node. This article assumes that one or more servers have been created and are running on the node, and that PMI is enabled.TPV displays graphics in either the Scalable Vector Graphics (SVG) format or as a static image in the JPG format. If you do not have the Adobe SVG browser plug-in installed, you are prompted to download and install it. If you select not to install the plug-in (by selecting Cancel), TPV displays the static image. Installing the Adobe SVG plug-in is advantageous for several reasons. First, the SVG format provides interactive graphics that provide additional information when you hover your mouse over a point, line, or legend item. The SVG format also enables you to click a point and see details for it. Secondly, using the SVG format provides a performance benefit because the work to display the SVG image is done on the client side. When viewing a static image, the application server must convert the SVG image into a static image, which is a processor and memory intensive operation.
Why and when to perform this task
You view performance modules when your server is experiencing performance problems. For example, a common performance problem occurs when individual sessions are too large. To help view data on a session, you can view the Servlet Session Manager PMI module and monitor the SessionObjectSize counter to make sure that Session Object Size is not too large.Performance modules are shown in the TPV current activity settings in the administrative console.
Steps for this task (dependent on configuration)
Each module has several counters associated with it. These counters are displayed in a table underneath the data chart or table. Selected counters are displayed in the chart or table. You can add or remove counters from the chart or table by selecting or deselecting the check box next to them. By default, the first three counters for each module are shown.
For example, a scale setting of .5 means that the counter is graphed as one-half its actual value. A scale setting of 2 means that the counter is graphed as twice its actual value. Scaling only applies to the graphed values and has no effect on the data displayed when viewing it in table form.
Counters based on absolute values cannot be reset and are not affected by clicking Reset to Zero.
Related tasks
Configuring TPV settings
Monitoring performance with Tivoli Performance Viewer (TPV)
Related reference
Using the Tivoli Performance Viewer
Tivoli Performance Viewer view logged data