Visual Studio CPU High Usage

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To see why Visual Studio causes such a high cpu usage you need to install the Windows Performance Toolkit, which is part of the Windows 10 SDK (if you use Windows 7, use the SDK Build 15086, which is the last version that works on Windows 7, for Windows 8,8.1 or Windows 10 use the WPT from latest Windows 10 SDK).

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Run WPRUI.exe, select First Level, CPU Usage and click on start. Capture 1 minute of the CPU usage, now click on Save to save the data into a ETL file.

Now make a double click on the generated ETL file to open the ETL in Windows Performance Analyzer (WPA.exe), drag and drop the CPU Usage (Sampled) to analyze pane:

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Now load debug symbols in WPA and expand the stack of the devenv.exe

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In my case the Telerik Extension causes CPU usage inside Visual Studio.

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