VSTS 2010 Feature: More flexible load modeling via new options on Load Test Scenarios

In VSTS 2010 Beta 1 (available for download here), there are four new properties on each Scenario in a Load Test that give you more control of the time, location, and duration of the running of the Scenario during the load test.    You can access the Scenario property sheet by right-clicking on the desired Scenario’s…


VSTS 2010 Feature: Sequential Test Mix

VSTS 2010 Load Tests offer several new options that can be set on each Scenario in the load test that give you more control over the execution of the Scenarios within the load test and therefore allows you to more easily create a load test that accurately models the load that your are trying to…


VSTS 2010 Load Test Feature: Saving Test Logs

Now that VSTS 2010 beta 1 is available I and other Load Test development and test team members will be writing a series of blog posts highlighting the new Web and Load testing features.   Ed Glas has a blog post that lists the new features here.    You can download the beta here. This post describes…


Hot fix available for think time bug introduced in VSTS 2008 SP1

There is now a hot fix available at http://connect.microsoft.com/VisualStudio/Downloads/DownloadDetails.aspx?DownloadID=15510 for the bug introduced in VSTS 2008 SP1 where think times were being ignored during a load test for Web test requests that resulted in redirect responses (described in my earlier post: http://blogs.msdn.com/billbar/archive/2008/08/04/bug-in-vsts-2008-sp1-causes-think-time-for-redirected-requests-to-be-ignored-in-a-load-test.aspx).  


Bug in VSTS 2008 SP1 causes think time for redirected requests to be ignored in a load test

Unfortunately, late last week we discovered a nasty bug with load testing in VSTS 2008 SP1 that is a regression from the original RTM version of VSTS 2008: for Web test requests that result in redirects, any think time that is specifed on the request is ignored when the Web test is run in a load test.   Even more…


Disabling caching of all dependent requests

 In a previous blog post here: http://blogs.msdn.com/billbar/archive/2007/01/22/simulation-of-browser-caching-in-vsts-load-tests-and-web-tests.aspx, I described the behavior of caching with VSTS 2005.     With VSTS 2008, the default caching behavior is the same.   However, with VSTS 2008, if you want completely disabling caching of all dependent requests and always fetch them, you can so by adding the following WebTestPlugin to your Web test:     public…


Web Test API enhancements available in VSTS 2008 SP1 (beta)

The beta for Visual Studio 2008 SP1 is now available.    This article describes enhancements to the VSTS Web test API that have been added in this update.   For complete details on changes and bugs fixes in this release, see Ed Glas’s blog post at: http://blogs.msdn.com/edglas/archive/2008/05/27/vs-2008-sp1-beta-is-available.aspx.   In this update, four new methods have been added to…


Content Index for Web and Load testing

Ed Glas has posted a “Content Index for Web and Load Tests” on his blog at: http://blogs.msdn.com/edglas/pages/content-index-for-web-tests-and-load-tests.aspx. This provides links to a variety of online resources (forums, blogs, whitepapers) for VSTS web and load testing.  


Troubleshooting the VSTS Load Testing IP Switching Feature

First some background on how IP Switching works with VSTS, which may differ from other load test tools you have used: Many other load testing tools that support IP Switching (also known as IP spoofing) require you to add the IP addresses to the network interface card (NIC) manually, and then the IP addresses are…


Mike Taute’s blog post on Diagnosing and fixing Web Test recorder bar issues

For anyone have trouble getting the VSTS Web test recorder to start recording properly, see Mike Taute’s blog post on diagnosing and fixing these problems at: http://blogs.msdn.com/mtaute/archive/2007/11/09/diagnosing-and-fixing-web-test-recorder-bar-issues.aspx.