Add information to the docs about thread priority (Linux)

[erichiller]

Some may wonder how to solve for the thread priority exception when optimizations validator is enabled. If you run with sudo or as a privileged user, it obviously solves this, but then all the compiled files are saved as root. It took me a bit, but the best solution I came up with to get around this is to put this into the Benchmark project's .csproj:

• within .csproj add a target:
  • For non-interactive, but the user's password must be provided on the command line, eg export SUDOPASS=user_password_here && dotnet run or to keep your password from being in the global environment: (export SUDOPASS=user_password_here && dotnet run)

  Target Name="PostBuild" AfterTargets="PostBuildEvent">
  <Exec Command="${SUDOPASS} | sudo --stdin setcap 'cap_sys_nice=eip' $(TargetDir)$(AssemblyName)" />
  /Target>
  

  • for a version which prompts the user for their password and can be run with a simple dotnet run:

  Target Name="PostBuild" AfterTargets="PostBuildEvent">
  <Exec Command="sudo setcap 'cap_sys_nice=eip' $(TargetDir)$(AssemblyName)"/>
  /Target>
  

This would have helped me, maybe it would help others. I'm happy to submit a PR, but I was unsure where this should be placed or if you wanted this information added at all.

[AndreyAkinshin]

Hello @erichiller, thanks for the report. PR is welcome! I think, /docs/articles/guides is a good place for such information. Just create a new file, describe the problem and the solution, and add this file to toc.yml (located in the same folder). You can find some additional information about our documentation workflow here.