Review of Denamik Analyzer

Written by Ingmar Verheij on May 10th, 2013. Posted in Performance testing

Denamik introduces the Denamik Analyzer, an add-on to the Denamik LoadGen product. With Denamik LoadGen one can perform load- and stress tests on hosted shared and hosted private infrastructures like Citrix XenApp and XenDestop.

While the LoadGen executes a test and gathers data about the performance metrics and response times, visualizing and analyzing the data required a third party solution and knowledge about the performance indicators. The Denamik Analyzer now enables you to analyze the captured data, create and save charts and start creating a report in minutes.

I’ve had the opportunity to play with an early release of the Denamik Analyzer in my lab and get some hands-on experience.

Unable to install/activate LoadBot (Denamik LoadGen)

Written by Ingmar Verheij on June 22nd, 2012. Posted in Performance testing

Denamik LoadGen can perform load- and stresstest on SBC and VDI environments by to simulate users. To distribute the load systems called ‘LoadBots’ are used to generate the load, resulting in an architecture with horizontal scaling capabilities.

Before a system is called a LoadBot an agent needs to be installed. The installation of the LoadBot is done from the central management console, the Director. The installation is pushed to the remote system and results in a small service running in the background.  The LoadBot can be (de)activated on demand from the central management console.

In this article I’ll explain the steps involved when installing (or activating) the LoadBot software on a remote machine. There are some common issues (like name resolution, firewall configuration, etc.) that I’ll explain as well.

Virtual (SQL)server impaired by residual snapshot after Veeam backup

Written by Ingmar Verheij on June 11th, 2012. Posted in Performance testing

Recently I had to troubleshoot a SQL server that performed nightly batch jobs for a management information system. Under normal conditions this required 6.5  hours but this was suddenly increased to 11.5 hours. An increase of 75%!

Because of this delay the information wasn’t presented on time with a lot of implications.  Several departments where asked what has changed in the past days, of course the answer was “nothing”.

Deploy Citrix Unattended: EdgeSight

Written by Ingmar Verheij on March 8th, 2012. Posted in Citrix, Performance testing

Most Citrix products can be installed unattended using command-line switches. This way you can automate the deployment of the product and decreases the administrative tasks (and prevents human errors).

I’ve collected online resources per product group and wrote them down in this article. Is something missing or do you have an addition (maybe your own blog article)? Let me know and I’ll add it to this article.

 

Product Group

Whitepaper : Quantify Perceived Performance

Written by Ingmar Verheij on September 20th, 2011. Posted in Performance testing

Determining the user experience is challenging since the experience is based on many factors. The performance of an application is one of the factors that determine the user experience.

If the performance of an application is bad, the user will grade the experience as bad.

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