VS2013 Preview high cpu usage when in theory idle

Question

I have a asp.net-mvc5 application which I am developing and from time to time I can see in windows server2008r2 task manager that devenv.exe (the visual studio 2013 instance I am using) is consuming 50%ish cpu usage. Considering this is a quad-core machine that means it must be maxing out two processors. VS still appears to be responsive when this occurs. Is there anything I can run diagnostically to see what feature is causing it?

incidentally I do quite often get errors with the JavaScript language service and it tells me to restart visual studio but this isn't occurring in this scenario.

Answer 1

Try disabling Browser Link:

<add key="vs:EnableBrowserLink" value="false" />

in your web.config appSettings