Comparing Profiling Data Files

It can be useful to compare session data in order to understand the effect of differences in activity at different times of day, week, or month. Comparisons can be especially useful when running performance testing benchmarks. (See “Preparing a Benchmark”.)

To compare data files, do the following:

From the main console, open two data files of the same type that you want to compare.
A viewer will open for each data representation (see “Using HPjmeter to Analyze Profiling Data” for an example profiling viewer).
Click on one of the viewers to make it active.
Two ways exist to create a combined set of comparable data:
- In one viewer, click FileCompare , or
- click the Compare button .
The Compare window opens, and you can now see the other file to compare your first file against.
Click the file name that you want to compare against.
When the file is highlighted, click the Compare button.
A new profile viewer opens that presents the selected data sets in comparison to one another.




	NOTE: For alternate access when you have multiple viewers open, click the button to bring the console to the top. The console lists all open sessions and data sets. For data sets, click the data representation to bring the already open viewer to the top. If the viewer has been closed, but the data representation is still listed in the console, double-clicking the data representation opens a new viewer.

Comparing Profiling Data Files

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