How to enable BROKEN stacks in PerfView for a 64-bit process in Windows Server 2012 R2

Question

I run perfview (default collection only) on a production system where the processor skips up to 100% for a couple of minutes. I get some useful results, but I also get a bunch of BROKEN stacks.

Windows Server 2012 R2 Appliance. The application is exe that starts. The application is compiled in .NET 4.0, but .NET 4.6.1 is running on the server

The perfview assistant says that these BROKEN stacks for my situation have been fixed in Windows 8 (I also assume Windows Server 2012). My dlls are not ngen-ed, but I don’t think it is necessary, as the problem is fixed in Windows 8

Any thoughts?

Answer 1

From PerfView command line help:

Usage: PerfView EnableKernelStacks

On X64 machines, if you have problems with broken stops, when the code runs in the kernel, setting this option and rebooting can improve the situation