Performance data is stored in a set of files in a directory that is created by the Collector. The data structure as a whole is called an experiment.
You should store performance data on a local filesystem rather than a networked filesystem whenever possible, to minimize the distortion of the data due to storage overheads and delays.
There is a limit of about 2 GBytes on the amount of data that the Performance Analyzer can process. You should control the size of the experiments to meet this limit.
For information about experiments, choose from the following topics:
Experiment Names
Experiment Groups
Estimating the Experiment Size
Controlling the Experiment Size
Limiting the Scope of an Experiment
For information on how to collect performance data, see Collecting Performance Data.