How to: View Performance Warnings
Note
This article applies to Visual Studio 2015. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here
The performance warnings of the Visual Studio Profiling Tools Profiling Tools indicate issues in a profiled application that can slow program execution. Warnings can also indicate that you might want to change collection methods to collect more useful data. Performance warnings are generated automatically in a profiling session and appear in the Error List window when a profiling data file is opened in the Visual Studio IDE.
If the Error List window does not appear when you open a profiling data file, click the View menu, and then click Error List.