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Visual Studio PerfWatson

Posted By:Maverick       Posted Date: July 07, 2011    Points: 25    Category: General    URL: http://www.dotnetspark.com  
 

What is Visual Studio PerfWatson?

Would you like your performance issues to be reported automatically? Well now you can, with PerfWatson extension! Install this extension and  assist the Visual Studio team in providing a faster future IDE for you. 

We're constantly working to improve the performance of Visual Studio and take feedback about it very seriously. Our investigations into these issues have found that there are a variety of scenarios where a long running task can cause the UI thread to hang or become unresponsive. Visual Studio PerfWatson is a low overhead telemetry system that helps us capture these instances of UI unresponsiveness and report them back to Microsoft automatically and anonymously. We then use this data to drive performance improvements that make Visual Studio faster.

Here's how it works: when the tool detects that the Visual Studio UI has become unresponsive, it records information about the length of the delay and the root cause, and submits a report to Microsoft. The Visual Studio team can then aggregate the data from these reports to prioritize the issues that are causing the largest or most frequent delays across our user base. By installing the PerfWatson extension, you are helping Microsoft identify and fix the performance issues that you most frequently encounter on your PC.

To allow PerfWatson to submit performance reports to Microsoft, please make sure that Windows Error Reporting (WER) is enabled on your machine, please see how to configure WER setting session. PerfWatson employs the WER service to send the collected data to Microsoft.

Using PerfWatson

PerfWatson is an automatic feedback service.  Once it is installed, all you need to do is use the product, and it will automatically create an error report for every UI delay you experience in the product.  It stores these error reports  in %LOCALAPPDATA%\PerfWatson. This data is then submitted to Microsoft on next Visual Studio launch.

If your Windows Error Reporting permissions are set to Automatically check for solutions and upload data, the performance reports will be submitted to Microsoft automatically. Otherwise, PerfWatson will prompt the user for permission to send the collected data. This prompt can be disabled by checking "Do not show this dialog again. Report problems automatically" on the dialog.  

 Note: The prompt for user consent can be re-enabled through the Visual Studio Help menu.  

How to configure/change WER settings?

If Windows Error Reporting is disabled on the machine, PerfWatson extension will prompt a warning and stop working. If you're not planning to enable your WER, please uninstall the PerfWatson extension.


If the you want to change WER settings, you can do so by accessing the settings page via the Action Center at Control Panel. 


This page allows setting the consent only for the specific user interacting with this page. However, if as an administrator, you want to configure settings for all users on a machine, you can do so by clicking on "Change report settings for all users" and making the same choice in that dialog. For further details about WER, please refer to  this blog post.

Supported Platforms

Before installing the extension there are a few limitations you should be aware of.  The extension requires diagnostic services/libraries on the OS that weren't introduced until Vista, hence PerfWatson is not supported for Windows XP.


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