Book Image

Optimizing Citrix?? XenDesktop?? for High Performance

By : Craig Thomas Ellrod
Book Image

Optimizing Citrix?? XenDesktop?? for High Performance

By: Craig Thomas Ellrod

Overview of this book

Citrix XenDesktop is a suite of desktop virtualization tools designed to provide users with fast and convenient access to their Windows desktops and applications through any device. Virtual desktops mean that rather than setting up hundreds or thousands of individual computers in an enterprise, companies can instead opt to create servers with large amounts of memory, disk, and processing resources, and use virtualization to offer these resources to end users. The result of this is that users are provided with an experience that appears to be identical to having an individual desktop PC. Each user has some disk space, processor time, and memory allocated to them, as though it is present on their own physical machine, when in reality, the resources are physically present on a centralized server. This book starts by answering the basic questions you need to ask when considering XenDesktop, followed by methods of how you can properly size your server infrastructure for XenDesktop. You’ll discover how to optimize the virtual machines used in XenDesktop, how to optimize your network for XenDesktop, and how to optimize the hypervisor and the cloud. You’ll also learn how to monitor XenDesktop to maximize performance. By the end of the book, you will be able to plan, design, build, and deploy high performance XenDesktop Virtualization systems in enterprises. You will also know how to monitor and maintain your systems to ensure smooth operation.
Table of Contents (18 chapters)
Optimizing Citrix XenDesktop for High Performance
Notice
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

XenDesktop® performance metrics


There are a few performance metrics that are worth monitoring in your XenDesktop environment. These metrics apply to the Windows virtual machines. They are listed here in the following table:

Metric

Descripton

Processor - % processor time

The percentage of time it takes to execute a thread. Calculated by observing the time the service is inactive and subtracting it from 100%. It depends on the process, but up to 70%-80% might be acceptable for one process.

System – processor queue length

The number of threads in the processor queue. This shows threads that are ready to run, not threads that are already running. A long CPU queue is a symptom of a CPU bottleneck. Up to five threads per core for five minutes is acceptable.

Memory – available bytes

The amount of memory available after non-paged pool allocations. If you get down to only 30% memory available, you should keep an eye on this.

Memory – pages / sec

The rate at which pages are read from or written...