Visual Studio 2015 diagnostic tools no longer working

Question

I have Visual Studio 2015 Community Edition Update 3 running on Windows 7 SP1 64 bit, which I use to develop C# applications.

I love the diagnostic tools during debu

Answer 1

I had a similar problem with Visual Studio 2015 Pro Update 3 running on Windows 10 Home. The runtime display of memory and cpu usage stopped working. Deleting the .suo file fixed the problem, as indicated by proc-self-map's answer. The .suo file was buried in the .vs hidden directory so I removed the whole .vs subdirectory. Now the runtime display of memory and cpu usage works like a charm again. No reinstall required.