Book Image

Citrix XenApp Performance Essentials

By : Luca Dentella
Book Image

Citrix XenApp Performance Essentials

By: Luca Dentella

Overview of this book

Citrix XenApp is an application virtualization product that allows users to connect to their corporate applications from any device. XenApp can host applications on central servers and allows users to interact with them remotely or stream and deliver them to user devices for local execution. Citrix XenApp Performance Essentials is a practical guide that provides you guidelines, best practices, and real world examples that will help you to improve the performance of your farm, identifying and solving possible bottlenecks and using advanced features including the new features provided by XenApp 6.5. Citrix XenApp is widely used to deliver enterprise applications to end users. This book covers the whole process of optimizing a XenApp farm, starting from the design phase all the way to tuning for remote users and connecting via geographic links. With your farm in production, you will understand what to monitor and how to optimize your farm, as well as how to use an open-source tool, WANem, to test the applications' behavior with different link conditions. You will also learn which settings and features XenApp offers to optimize CPU and memory utilization. This book will help you to prevent or solve performance problems and make your users happy working with published applications.
Table of Contents (12 chapters)

Traffic shaping


In some scenarios, it is very important to limit the maximum bandwidth used by different sessions. Even if you're using a high-speed link, shaping some streams is a good practice. Consider, for example, a user working with a scanner; when the scanner sends the image to the application running on the XenApp server, it can easily saturate the available bandwidth.

XenApp offers a category of user policies to limit the bandwidth used by the different supported redirections, as shown in the following screenshot:

Limit the bandwidth used by XenApp

You can limit the overall session bandwidth and/or the bandwidth used for:

  • Audio redirection

  • Client USB device redirection

  • Clipboard redirection

  • COM port redirection

  • File redirection

  • HDX MediaStream redirection

  • LPT port redirection

  • Printer redirection

  • TWAIN device redirection

You can define a fixed limit value (in Kb per second) and a percentage of the total session bandwidth. If you configure both the two settings, the most restrictive one is applied...