You can load multiple experiments or experiment groups simultaneously in Performance Analyzer. By default, when multiple experiments on the same executable are loaded, the data is aggregated and presented as if it were one experiment. You can also look at the data separately so you can compare the data in the experiments.
To compare two experiments in Performance Analyzer, open the first experiment in the normal way and then select File > Add Experiment to load the second experiment. To compare them, right-click in a view that supports comparing and select Enable Experiment Comparison.
The tabs that support comparing experiments are Functions, Callers-Callees, Source, Disassembly, Lines, and PCs. In comparison mode, the data from the experiments or groups is shown in adjacent columns on these tabs. The columns are shown in the order of the loading of the experiments or groups, with an additional header line giving the experiment or group name.