Bill Barnett's blog

Visual Studio Team System - Web and Load Testing

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...

Author: billbar@microsoft.com Date: 06/11/2009

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...

Author: billbar@microsoft.com Date: 06/10/2009

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...

Author: billbar@microsoft.com Date: 06/08/2009

How is the user load adjusted for a load test with a goal based load pattern?

This post describes how the user load is adjusted when a load test scenario uses a goal based load...

Author: billbar@microsoft.com Date: 09/12/2008

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

There is now a hot fix available at...

Author: billbar@microsoft.com Date: 09/10/2008

Collecting SQL counters from a non-default SQL instance in a VSTS Load Test

If you want to collect performance counters from a SQL Server instance while running a load test,...

Author: billbar@microsoft.com Date: 08/06/2008

Article posted: Diagnosing OutOfMemoryExceptions that occur when running load tests

I've posted a new article on diagnosing problems running out of memory while running a VSTS load...

Author: billbar@microsoft.com Date: 08/05/2008

Diagnosing OutOfMemoryExceptions that occur when running load tests

We’ve had a number of users report OutOfMemoryExceptions occurring in the QTAgent process (or the...

Author: billbar@microsoft.com Date: 08/05/2008

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...

Author: billbar@microsoft.com Date: 08/04/2008

Running Load Tests with VSTS 2008 SP1 requires that SP1 be installed on VS client, controller, and agents

As mentioned in previous blog posts, the beta version of VSTS 2008 SP1 is now available. In order to...

Author: billbar@microsoft.com Date: 06/13/2008

Disabling caching of all dependent requests

In a previous blog post here:...

Author: billbar@microsoft.com Date: 06/06/2008

Engage!

This is my first blog post of a personal nature. I heard on TV this morning that today marks the...

Author: billbar@microsoft.com Date: 06/05/2008

Articles Posted on Web and Load Test API enhancements available in VSTS 2008 SP1 beta

The beta for Visual Studio 2008 SP1 is now available and includes enhancements to both the Web test...

Author: billbar@microsoft.com Date: 06/04/2008

Load Test API enhancements in VSTS 2008 SP1 (beta)

The beta for Visual Studio 2008 SP1 is now available. This article describes enhancements to the...

Author: billbar@microsoft.com Date: 06/04/2008

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...

Author: billbar@microsoft.com Date: 06/04/2008

Article Posted: Moving VSTS 2005 Load Test results from one computer to another

I've posted an article on "Moving VSTS 2005 Load Test results from one computer to another":...

Author: billbar@microsoft.com Date: 04/03/2008

Moving VSTS 2005 Load Test results from one computer to another

In VSTS 2008, it is now possible to easily export load test results from one test environment and...

Author: billbar@microsoft.com Date: 04/03/2008

Article posted: Adding Console Output to Load Tests running Unit Tests

I've posted an article on "Adding Console Output to Load Tests running Unit Tests":...

Author: billbar@microsoft.com Date: 04/03/2008

Adding Console Output to Load Tests running Unit Tests

VSTS allows you to use the Console.WriteLine within unit tests, but the output is only valid when...

Author: billbar@microsoft.com Date: 04/03/2008

Content Index for Web and Load testing

Ed Glas has posted a "Content Index for Web and Load Tests" on his blog at:...

Author: billbar@microsoft.com Date: 12/17/2007

Article Posted: Troubleshooting the VSTS Load Testing IP Switching

I've posted an article on "Troubleshooting the VSTS Load Testing IP Switching Feature":...

Author: billbar@microsoft.com Date: 11/28/2007

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...

Author: billbar@microsoft.com Date: 11/28/2007

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...

Author: billbar@microsoft.com Date: 11/12/2007

Article Posted: Features and behavior of Load Tests containing unit tests in VSTS 2008

I've posted an article that describes how Load Tests that contains Unit Tests work in VS 2008:...

Author: billbar@microsoft.com Date: 10/12/2007

Features and behavior of Load Tests containing unit tests in VSTS 2008

This article describes the behavior in VS 2008 for load tests that contain unit tests (VS 2005 was...

Author: billbar@microsoft.com Date: 10/12/2007

Configuring a non-default port number for the VS Team Test Controller

By default, the Visual Studio Team Test Controller listens on TCP/IP port number 6910. If for any...

Author: billbar@microsoft.com Date: 07/31/2007

New Load Test and Web Test features in the Orcas release

Here is a summary of just a few of the enhancements to Web testing and load testing coming in the...

Author: billbar@microsoft.com Date: 06/14/2007

Coded Web tests (and Web test plug-ins) should not block the thread

If you are using Coded web tests (or Web test plug-ins with a declarative Web test) and running the...

Author: billbar@microsoft.com Date: 06/13/2007

Simulation of browser caching in VSTS load tests and Web tests

In a VSTS load test that contains Web tests, the load test attempts to simulate the caching behavior...

Author: billbar@microsoft.com Date: 01/22/2007

Article posted: Limiting the number of tests run in a load test

I've posted an article with an example load test plug-in that allows you to specify the maximum...

Author: billbar@microsoft.com Date: 02/16/2006

Using a load test plugin to limit the number of tests run in a load test

Normally the number of iterations of the inner tests (usually web tests and unit tests) run during a...

Author: billbar@microsoft.com Date: 02/16/2006

Article Posted: What is the data in the load test results store

If you're interested in accessing the data in the load test results store directly to build your own...

Author: billbar@microsoft.com Date: 02/13/2006

What is the data in the VSTS load test results store

Table: LoadTestRun: Contains one row for each load test that is executed. Columns: LoadTestRunId...

Author: billbar@microsoft.com Date: 02/10/2006

Deleting old load test results

Load testers sometimes need to clean up old load test results from the VSTS load test results store....

Author: billbar@microsoft.com Date: 02/09/2006

Article on implementing sync points posted

I've posted an article on Implementing sync points in VSTS load tests at:...

Author: billbar@microsoft.com Date: 02/09/2006

Implementing sync points in VSTS load tests

Visual Studio Team System load tests do not have a "sync point" feature that lets a load tester...

Author: billbar@microsoft.com Date: 02/09/2006

Article Posted: Advanced Load Testing Features of VSTS

I've posted an article that discusses some of the advanced features of VSTS Load Testing. The...

Author: billbar@microsoft.com Date: 01/24/2006

Advanced Load Testing Features of Visual Studio Team System

Visual Studio Team Test Edition provides two capabilities that can allow users to create load tests...

Author: billbar@microsoft.com Date: 01/24/2006

Introduction

I'd like to start this blog by introducing myself. I'm a Software Design Engineer (SDE) on the team...

Author: billbar@microsoft.com Date: 01/23/2006