Book Image

vSphere High Performance Cookbook - Second Edition - Second Edition

By : Kevin Elder, Christopher Kusek, Prasenjit Sarkar
Book Image

vSphere High Performance Cookbook - Second Edition - Second Edition

By: Kevin Elder, Christopher Kusek, Prasenjit Sarkar

Overview of this book

vSphere is a mission-critical piece of software for many businesses. It is a complex tool, and incorrect design and deployment can create performance related issues that can negatively affect the business. This book is focused on solving these problems as well as providing best practices and performance-enhancing techniques. This edition is fully updated to include all the new features in version 6.5 as well as the latest tools and techniques to keep vSphere performing at its best. This book starts with interesting recipes, such as the interaction of vSphere 6.5 components with physical layers such as CPU, memory, and networking. Then we focus on DRS, resource control design, and vSphere cluster design. Next, you’ll learn about storage performance design and how it works with VMware vSphere 6.5. Moving on, you will learn about the two types of vCenter installation and the benefits of each. Lastly, the book covers performance tools that help you get the most out of your vSphere installation. By the end of this book, you will be able to identify, diagnose, and troubleshoot operational faults and critical performance issues in vSphere 6.5.
Table of Contents (17 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Improving performance through NetQueue


NetQueue is a type of performance technology that improves the performance of virtualized environments that use 10 GigE adapters supported by VMware. NetQueue takes advantage of the multiple queue capability that newer physical network adapters have. Multiple queues allow I/O processing to be spread across multiple CPUs in a multiprocessor system. So while one packet is queued up on one CPU, another packet can be queued up on another CPU at the same time.

Getting ready

To step through this recipe, you will need a running ESXi Server with SSH enabled and an SSH client (Putty). No other prerequisites are required.

How to do it...

NetQueue is enabled by default. Disabling or enabling NetQueue on a host is done using VMware's vSphere Command-Line Interface (vCLI).

To enable and disable this feature, perform the following activity:

  1. Log in to the ESXi host using an SSH client (Putty).
  2. Now run the esxcli system settings kernel with the following command:
~ # esxcli...