Updated WCAT 6.3 released

The original release of WCAT 6.3 contained a bug that was causing many users to not be able to use the tool succesfully.

The bug resulted in the "NULL controller specified" error.

The perf team folks were nice enough to provide a fix for this bug, and re-release the tool.

You can find the updated bits for the tool at the normal WCAT 6.3 download locations:

1) WCAT 6.3 x86

2) WCAT 6.3 x64

You can find my original announcement about the WCAT 6.3 release here. You can find detailed documentation in the download, and also attached to my announcement.

As promised, I'll post some more info about using WCAT just as soon as I get the time soon.

As always, post here or on the other post if you run into any issues.

Thanks,

Mike

Published 24 January 08 08:29 by Mike Volodarsky

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# IIS 7.0 Server-Side : WCAT 6.3 web performance and scalability test tool released said on January 24, 2008 10:24 PM:: PingBack from http://mvolo.com/blogs/serverside/archive/2007/05/17/WCAT-6.3-web-performance-and-scalability-test-tool-released.aspx
# MVolo's Blog said on January 24, 2008 10:26 PM:: The updated WCAT 6.3 build is now available to download that fixes the "NULL Controller Specified" issue
# Dave said on March 14, 2008 6:34 PM:: The installation instructions look quite complex. Is there a simple install on a single machine just to try it out?
# Steve McAllister said on April 10, 2008 8:55 AM:: I have setup an environment to load test a NLB .NET 2.0 shopping cart. I would like to use a Windows 2000 server as the primary controller. Before I go down this road, am I going to have problems? I know the docs says use Window 2003 as the primary controller, so that you can use DNS and DHCP for the private network. Regards, --SteveMc
# Poenaru Radu said on October 19, 2008 6:36 AM:: Can you be kind enough to post also a way to modify WCAT configuration file for testing a website's performance? Thank you in advance
# Rahu Mahboobani said on January 22, 2010 9:00 AM:: I follow the doc to install WCAT 6.3. When I run it I only get "Invalid parameter -t specified". Here is my command, please can you help? Thanks! C:\Program Files\wcat>wcat.wsf -terminate -run -t scenario.txt -f settings.txt -s pilot.acme.com Microsoft (R) Windows Script Host Version 5.7 Copyright (C) Microsoft Corporation. All rights reserved. wcat.wsf - WCAT Utility Script Copyright (c) 1995-2007 Microsoft Corporation. message: Parsing parameters... parameter: terminate parameter: run parameter: clients = localhost (default) parameter: {wcctl.exe command line} = -t scenario.txt -f settings.txt -s pilot.acme.com -clients 1 message: Terminating all instances of wcclient... message: Terminating all local instances of wcctl.exe... message: Launching wcclient.exe on all clients... message: starting wcclient.exe on localhost with command line of \\localhost\admin$\wcat\wcclient.exe AOFRSO604 -b... message: executing '"C:\Program Files\wcat\wcctl.exe" -t scenario.txt -f settings.txt -s pilot.acme.com -clients 1'... Invalid parameter -t specified. message: Run error detected, terminating clients... message: Terminating all instances of wcclient... message: Terminating all local instances of wcctl.exe...

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About Mike Volodarsky

For the past 5 years, I was the core Program Manager for Microsoft ASP.NET 2.0 and IIS 7.0 products. I drove the design and development of the IIS 7.0 web server core, the IIS FastCGI support, the AppCmd command line tool, the ASP.NET Integrated pipeline, and other special projects around server security, performance, and scalability. Now, I am working on my own on cutting edge web server tech on top of the Microsoft IIS platform, and continue blogging about it here.

About me

For the past 5 years, I was the core server Program Manager for the IIS 7.0 and ASP.NET 2.0 products at Microsoft.
Now, I work on advanced web server tech using IIS 7.0, .NET, and Windows Server 2008 and write about it in this blog.

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TechNet Magazine
>Top 10 Performance Improvements in IIS 7.0

MSDN Magazine
>IIS 7.0: Build Web Server Solutions with End-To-End Extensibility
>IIS 7.0: Enhance Your Apps with the Integrated ASP.NET Pipeline
>IIS 7.0: Explore The Web Server For Windows Vista And Beyond
>Design and Deploy Secure Web Apps with ASP.NET 2.0 and IIS 6.0
>Fast, Scalable, and Secure Session State Management for Your Web Applications

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