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I am running PerfView on Windows Server 2012. It is running on a VMware VM. As shown in the below image, the CPU is 0 for all the processes.

Where should I start debugging?

enter image description here

Sundeep
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  • What are you trying to troubleshoot with Perfview? In the events window there is an event for exception as well as for Perfview. I would also start exploring that. – Naveen Aug 20 '15 at 18:33
  • CPU utilization is 100% on that machine. I am trying to understand which process is consuming the most & why? – Sundeep Aug 25 '15 at 18:13
  • @Sundeep Have you solved this problem? I have also experienced it, but on Windows 10. – RedCrusaderJr May 12 '22 at 17:29

2 Answers2

1

It looks like this GitHub issue is relevant. From this comment:

I just learned of a feature in Microsoft Defender that may cause the behavior you're seeing, as it takes the PMU from ETW. You can read more about it at https://www.microsoft.com/security/blog/2021/04/26/defending-against-cryptojacking-with-microsoft-defender-for-endpoint-and-intel-tdt/ and https://techcommunity.microsoft.com/t5/microsoft-defender-for-endpoint/defending-against-ransomware-with-microsoft-defender-for/ba-p/3243941.

The feature can be disabled by running powershell.exe Set-MpPreference -DisableTDTFeature $true.

Long story short, run the following from Powershell:

Set-MpPreference -DisableTDTFeature $true
canton7
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I had the same issue and couldn't figure it out. So I deleted standalone exe, along with other perfview related zips and re-downloaded latest zip from the official microsoft website. Unzipped it and it started working again. This is definitely a bug.

Aleksandar Zivkovic
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