◦The measured application completes.

◦All the attached processes terminate.

◦The measurement duration you set on the Target page expires.

◦You select the Kill/Stop button.

The application program being measured will be terminated immediately if you select the Kill button.

•When a measurement run completes, its performance data is automatically added to the current project within the Projects view.

Exploring Performance Data

All of the performance measurement data listed in the Projects view is available for exploring in the Analyze view. This includes data from measurement runs made using the GUI and performance databases created by the command-line HP Caliper and imported into the GUI.

Each measurement run produces two or more datasets: Run Summary, Process Tree, Histogram, Call Graph, Memory Usage, and so forth. These are grouped within a folder in the Projects view, which is given a name appropriate to the measurement made.

The easiest way to view performance data is to expand the folder for the performance run (if it is not already open) and double-click on the type of data to be displayed. This will cause an Analyze view to be created and the selected data displayed on a tabbed page within that view. As you double-click on other types of data within the same performance run, that performance data will be displayed on other tabbed pages within the same Analyze view. Each measurement run will get its own, separate Analyze view.

You can navigate through performance data by a combination of any of the following:

•Double-clicking on items to view them or to drill down to the next lower level of detail.

•Selecting using the right mouse button menu to choose from a set of data to view.

•Clicking on tabbed pages to select different types of data.

•Vertical and horizontal scrolling to see data too large to fit in the window.

Many of the performance data viewers also allow you to select which metrics gets graphed and which metric to use for sorting the data elements.

The general rule of thumb is to start with the Projects view. Then, in the Projects view, select the dataset to view. Then explore the selected performance data by navigating within the Analyze view.

Getting Performance Tuning Advice

HP Caliper can analyze the collected performance data and give you advice about tuning your application or suggest additional measurements which are relevant.

Once you have collected at least one set of performance data, click on the Generate Advice button or toolbar choice. HP Caliper will analyze the data and open an Advisor view with its advice.

Every time you make another collection run, re-run the analysis to get updated advice.

Exploring Performance Data 39