perfcollect & PerfView: unable to get events working

While working on https://github.com/dotnet/BenchmarkDotNet/pull/2117 I've very carefully followed the docs and have failed to get a trace file that contains events that could be successfully presented by PerfView. I've tried both x64 and arm64 Ubuntu machines.

The app that I've used:

string path = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
string content = new string('a', 100_000);

for (int i = 0; i < 10_000; i++)
	File.WriteAllText(path, content);

File.Delete(path);

Console.WriteLine("Done!");

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFrameworks>net5.0;net6.0;net7.0</TargetFrameworks>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
    <LangVersion>Latest</LangVersion>
  </PropertyGroup>
</Project>

The trace files I got:

net5.trace.zip
net6.trace.zip
net7rc1.trace.zip

@brianrob could you please take a look at these trace files and let me know if I am doing something wrong? I was expecting that with the default settings (COMPlus_PerfMapEnabled=1, COMPlus_EnableEventLog=1) some default events are going to be enabled and captured.

Start by opening the attached net5.trace.zip, net6.trace.zip, and net7rc1.trace.zip files in PerfView and compare the capture results with the documented perfcollect workflow and COMPlus_PerfMapEnabled and COMPlus_EnableEventLog settings. Done means identifying whether the traces are incorrectly captured or merely unreadable by PerfView, then documenting the cause or the required correction.