Bug 7322 - System.Diagnostics.PerformanceCounter wrong values for user created average counters
Summary: System.Diagnostics.PerformanceCounter wrong values for user created average c...
Status: NEW
Alias: None
Product: Class Libraries
Classification: Mono
Component: System ()
Version: 2.10.x
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2012-09-20 05:35 UTC by Herwig
Modified: 2012-09-20 06:01 UTC (History)
1 user (show)

Is this bug a regression?: ---
Last known good build:

shortened results from windows and linux execution (1.57 KB, application/zip)
2012-09-20 05:35 UTC, Herwig

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.

Please create a new report for Bug 7322 on GitHub or Developer Community if you have new information to add and do not yet see a matching new report.

If the latest results still closely match this report, you can use the original description:

  • Export the original title and description: GitHub Markdown or Developer Community HTML
  • Copy the title and description into the new report. Adjust them to be up-to-date if needed.
  • Add your new information.

In special cases on GitHub you might also want the comments: GitHub Markdown with public comments

Related Links:

Description Herwig 2012-09-20 05:35:22 UTC
Created attachment 2577 [details]
shortened results from windows and linux execution

When creating a new average counter in a new category, there seams to be a problem with the base-counter.

Test case:
Source from

Works good with Windows (executed with administrator priviliges to be able to create new categories)
For linux it is required to replace the two lines:
>if (SetupCategory())
>            return;

otherwise, the programm will only create the category but not continue.

Does not work with linux.
returned values are wrong (infinity instead of the average!)

(shortened Version) of the outputs (windows and linux) attached.

It seams that the base counter is not increased correctly. Therefore the measured results are wrong (infinity)