VS2008 AJAX Profiling Extensions


Today, the team released Microsoft Visual Studio 2008 AJAX Profiling Extensions – a new power tool to measure the performance of the portions of web applications that execute JavaScript inside the web browser.



The AJAX Profiling Extensions provide much-needed visibility into often complex, web client-side interactions for the first time.  You do not need to download and install any additional software, plug-ins, or ActiveX controls on the machine where the AJAX web client code is running to use the AJAX Profiling Extensions to gather JavaScript execution-time data.  Also, this works with any web browser, including, of course, the latest version of Internet Explorer.



AJAX Profiling Extensions is an add-on to the performance tools that are available in Visual Studio Team System 2008 Development Edition and Visual Studio Team Suite, extending them to allow you to profile the client-side JavaScript code in your AJAX application.



Developed in collaboration with Microsoft Research, AJAX Profiling Extensions automatically rewrites JavaScript functions to enable instrumentation that measures and logs each function’s performance data. This performance data is then periodically uploaded from the client browser to the IIS web server, where it is collected and available for analysis.



How it Works


AJAX Profiling Extensions consist of two major pieces:


1.     a server-side component that handles JavaScript instrumentation and data collection


2.     a Visual Studio Team System add-in that reads and analyzes the performance data gathered into the Visual Studio Performance Explorer.


The server-side component installs into the IIS 7.0 integrated pipeline and adds instrumentation to your JavaScript code on the fly before it is sent to the web browser. The AJAX Profiling Extensions are designed to work with any web browser, but they require IIS 7.0 running in Integrated Pipeline mode. A Profiling Extensions Administration panel on the web server allows you to define and manage profiling sessions.


Administration Panel



Once you have gathered AJAX client performance data, you can install AJAX Profiling Extensions onto your copy of Visual Studio 2008 Team Development Edition or Visual Studio Team Suite. You can then use the Visual Studio Profiler to analyze the performance data gathered from your client-side JavaScript applications. The Visual Studio Profiler will provide data such as which JavaScript functions your application is calling most frequently and which ones take the longest amount time to process.  As you are analyzing the data, you can navigate directly to JavaScript source.


Report Summary 




To get started monitoring the performance of your client-side AJAX code, download Visual Studio 2008 AJAX Profiling Extensions from Code Gallery, then join the discussion.



Namaste!

Comments (19)

  1. Originating in Microsoft Research as Ajax View , the Visual Studio 2008 AJAX Profiling Extensions Power

  2. Tomas Scott says:

    A lot of us is still "stuck" with IIS6.

    Any support for that?

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  4. progg.ru says:

    Thank you for submitting this cool story – Trackback from progg.ru

  5. Tomas: No, unfortunately, the extension doesn’t work under IIS6.  The tool is written in managed code and requires support that’s only in IIS7 to let it rewrite the JavaScript.

  6. Greg says:

    Any chance that profiling will be a standard feature in VS10 professional edition and not just in the much more expensive TFS?  VS6 had instruction level profiling included in the least expensive version.

  7. Microsoft Visual Studio 2008 AJAX Profiling Extensions is a new power tool to measure the performance

  8. chrissc says:

    Greg: unfortunately, no, currently there aren’t any plans to release the Visual Studio Profiler as part of the Express or Pro products.

  9. I have used AJAX View (i guess it the former version) and it didnt work well, what is the level of testing this framework got?

  10. MarkBFriedman says:

    Ran,

    This released version was subjected to a much more intensive QA and testing process internally than any previous versions you may have played with. We do not have any Known problems, other than the documented "gotchas" in the installation notes.

    And it is a supported tool, so we want to hear from you if you run into any problems at your end. If we can find the problem & fix it, we will.

    Thanks.

    — Mark

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  14. Our team, in conjunction with Microsoft Research, have been working on a power tool known as AjaxView

  15. Our team, in conjunction with Microsoft Research, have been working on a power tool known as AjaxView

  16. al3018 says:

    Have you investigated the use of the end user monitoring with AVIcode’s Intercept studio?

    Ari

  17. The AJAX Profiling Extensions provide much-needed visibility into often complex, web client-side interactions

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  19. Hi,

    Very cool features. We will use that .

    Thanks,

    Thani