URLSTRESS – a simple GUI tool with source code to stress your favorite web server !

There is a number of stress testing tools available for IIS. WCAT and VSTS/ VSALM are probably the best known tools today: WCAT – Web Capacity Analysis Tool (free) VSTS (Visual Studio Team System) now called VSALM (Visual Studio Application Lifecycle Management) (part of Visual Studio Ultimate) For an overview of both tools, you may…

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Steps for setting up a custom identity of an IIS 6 application pool

From time to time, I always have to show someone how to setup an IIS application pool to use a service / domain account under IIS 6 / Windows 2003. There are several places on the MSDN where you can find part of the procedure, but I have decided to just give everyone a simple…

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Introducing Instant Searching with instant-tube.com

Following the introduction of the instant search feature by Google some 2 week ago (in mid-September), I have decided to look into creating a small search interface that would allow the same kind of instant (ajaxified searching) for another popular website: youtube.com to see what would be the challenges of building such a web application…

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Managed Debugging with WinDBG and PSSCor2

If you are anything like me, you have developed ASP.net applications, debugged them using Visual Studio, made sure that they work reasonably well, and then sent them over to the production servers to start using them with real live users. So what happens if you see that there are bugs in production, and you don’t…

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Remember me checkbox does not work with Forms Authentication

Over the summer, I have been working on developing various ASP.net websites for either Microsoft or personal initiatives (like www.linqto.me). While writing the code for these sites, I decided to implement ASP.net Forms Authentication on each of these applications. When writing the logon screen, I made use of the classic Login control provided as part…

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New features recently implemented in HTTPREPLAY

I’ve recently implemented a couple of new features in HTTPREPLAY in order to ease report generation and troubleshooting: Ability to generate HTTPREPLAY report without starting “replay proxy” Minor fixes including STRACE log filename being now part of HTTPREPLAY report filename Conversion of HTTP or socket related data to PCAP format in order to take advantage…

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Impact of virtualization on heavy web workloads

As the global trend is to virtualize servers in order to simplify management and lower TCO I am seeing more and more customer willing to virtualize their web workloads. As a result I am often asked what could be the impact of virtualization of their existing environment vs keeping dedicated servers. I did my best…

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Utiliser ProcDump.exe pour monitorer un pic CPU pour le processus W3WP.exe

Un de nos collègues, Jaskirat Singh, a rédigé un article de blog sur l’utilisation de ProcDump.exe afin de monitorer un pic CPU pour le processus W3WP.exe : http://blogs.msdn.com/webtopics/archive/2009/08/08/using-procdump-exe-to-monitor-w3wp-exe-for-cpu-spikes.aspx Je me propose donc d’en faire une adaptation française car cela peut vraiment être très utile. Quand votre processus W3WP.exe (ou n’importe quel autre processus) monte en CPU,…

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Using FREB to generate a dump on a long running request

Hi,In a previous article, I was explaining how to generate a FREB log on a HTTP error or a long running request.It’s also possible to generate a dump based on the FREB rule, by example, when a request takes more than 15 seconds to be executed.The major inconvenient is the need to make a choice…

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