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dotnet / corefx-tools

Place to include various misc tools for .NET and .NET Core.
MIT License
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perfview System.FormatException when viewing CPU stacks section in perfview collected from Kubernetes POD #95

Closed paraspatidar closed 5 years ago

paraspatidar commented 5 years ago

Hi, I am running dotnet core (2.2.2) process on K8 pod with elevated rights and could do a perf collect without any issue and trace is created as well as CPU stack (perf.data.txt) is created.

However , when coping to windows and opening the CPU stack , it fails with exception :

System.FormatException: Input string was not in a correct format

this happens when we do `sudo ./perfcollect collect sample'

however if we pass on the process id (-pid param) , then CPU traces doesnt gather at all as mentioned in another issue : https://github.com/dotnet/corefx-tools/issues/84 &

https://github.com/dotnet/coreclr/issues/18452

this format issue was said to be fixed in https://github.com/Microsoft/perfview/issues/166 but i am using perfview 2.0.26 and facing this issue. here is sample trace : https://drive.google.com/file/d/1eyQWCIAefVyCCp0zm5vCSr0f0Jp99EGC/view?usp=sharing

sywhang commented 5 years ago

cc @vancem

Vance, should we move this issue to the PerfView repo?

vancem commented 5 years ago

Yes, go head and do that.

vancem commented 5 years ago

This is being fixed by https://github.com/Microsoft/perfview/pull/890

vancem commented 5 years ago

I am closing this as the fix has been checked into the PerfView repo. Note that a release with that fix has not yet happened (but you can build PerfView yourself if desired).