I'm able to show the diagnostic tools windows via Debug -> Windows -> Show Diagnostic Tool.
But that windows always disappears when starting / debugging the application.
What is going on?
To do this go to Debug -> Start Diagnostic Tools without Debugging, select CPU Usage, and click Start.
When you start debugging in Visual Studio by selecting Debug > Start Debugging, or pressing F5, the Diagnostic Tools window appears by default. To open it manually, select Debug > Windows > Show Diagnostic Tools. The Diagnostic Tools window shows information about events, process memory, and CPU usage.
To disable the Diagnostic Tools, start a debugging session, select Tools > Options > Debugging > General, and then deselect the Enable Diagnostic Tools while debugging option.
AQtime Pro, a performance profiler and memory allocation debugger that can be integrated into Microsoft Visual Studio, and Embarcadero RAD Studio, or can run as a stand-alone application.
I had the same. The Diagnostic Tools window was closed.
While your application is started go to the menu:
Debug --> Windows --> Show Diagnostic Tools
I think Visual Studio has two different layouts during design time and run time. So even it the window is showing in design time, it will not show when the project is running unless is selected during run time.
First of all check if Diagnostic Tools are enabled while debugging.
To check this go to Tools->Options->Debugging and check Enable Diagnostic Tools while debugging checkbox.
In my case unchecking the option "Use Managed Compatibility Mode" in Tools > Options > Debugging caused Diagnostic Tools and PerfTips appear. I have Visual Studio 2015 Update 3.
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