login vsi company logo login vsi company logo 250x40

 

Get the best possible VDI performance, density and availability with Login VSI
Our Solutions

  • Home
  • Blog
  • Influence of power management on VDI performance

Influence of power management on VDI performance

Tuning your image can have a huge impact on the performance of your environment. Tools like VMware OSOT or the Citrix Optimizer can help you with this. While most of the individual settings within your image have a small impact on the performance there is one setting outside of your image which has a big impact. The power management of your hypervisor. This setting is a bit hidden and easy to forget. Setting it correctly in your BIOS isn’t always enough.

Where you can set the power management in the BIOS is different for every vendor. The naming for the option is also different per vendor. Most vendors allow you to set four different flavors of power management, going from low, balanced, to high and as additional flavor: OS controlled power management. Important to know is that OS controlled power management means the BIOS allows to be overruled by the OS. It can mean you have to set the power management in the hypervisor itself.

For example in the vCenter you can set the power management under the Configure tab of the hosts itself. To make it more difficult for you; VMware created in the vCenter two tabs in the config of your hosts that are called power management. The power management tab underneath hardware should allow you to set an active policy. Make sure it is set to high performance!

Image 1

With so many options it is easy to misconfigure the setting but the impact can be huge. My colleague Mark Plettenberg executed several tests in the VDI Like a Pro labs to prove the impact. With fully automated tests and over ten test runs the average impact on the baseline was 64%. Sixty four percent of free user experience improvement.

“Faulty power management is the most common but easiest to fix VDI mistake. Configuring this properly can save your users a lot of energy as user experience will increase”

Mark Plettenberg

Recognizing the faulty power management after a Login VSI test is relatively easy. The Login VSI VSImax graphs are build based on linear user load. This means our graphs should show a nice linear line upwards like in the graph underneath.

Image 2

VSImax graph

When the performance (y-axis) of your system is better with a higher load (x-axis) something is wrong. After a Login VSI test you can see this in the Login VSI VSImax graphs. It will start to show waves. This should be an alarm trigger to check your power management!

Image 3

Faulty power settings

So, make sure you check, set and test the configuration. Mistakes in the power management are easy to make but also easy to discover. Test and verify if you have set the correct setting can be the difference between a good performing VDI and unhappy end-users.

For more information on power and performance, see these other helpful blogs:

About the author

Jasper Geelen (@jaspergeelen) has a background in ICT and joined Login VSI as a pre-sales engineer in 2015. He loves drinking a lot of coffee (some might call him an addict). In his spare time, Jasper enjoys a beer and he is part of a football / soccer team. He also coaches a team of younger football players.


Tags: Citrix, VMware, #VDILIKEAPRO, VSImax

Popular Blogs

Login VSI Blog - Ongoing Effects CPU Flaws

The Ongoing Effects of Intel CPU Flaws

The Ongoing Effects of Intel CPU Flaws Over the last year, we’ve seen many Intel CPU hardware flaws come to light and when news first broke about Meltdown & Spectre there was a lot of panic: "should we patch?", "What’s the performance impact?", "Can we still rely on this hardware?" Continue Reading
Login VSI Blog - How-To Update, Protect Against RIDL, Fallout MDS Vulnerability

How-To: Update, Protect Against RIDL, Fallout MDS Vulnerability

RIDL & Fallout MDS vulnerabilities, impact on VDI performance & actions to take. FAQs we’re receiving & updates on performance tests executed to patch flaws Intel calls “Microarchitectural Data Sampling (M.D.S.)” aka: Rogue In-Flight Data Load (RIDL), Fallout, ZombieLoad & Store-to-Leak Forwarding. Continue Reading
Login VSI Blog - Teaser Image - A Practical Guide to VDI Change Management - Part 1

A Practical Guide to VDI Change Management

Part 1: IT Change Management in general The first in an 8-part series, this practical guide to VDI Change Management will guide you through the transformation of the IT department from a back-end function into a core competency for every modern organization. Continue Reading
Login VSI - Blog - Login PI Blog Teaser Image - Windows Virtual Desktop: How To Monitor User Experience With Login PI

Windows Virtual Desktop – How to Monitor User Experience?

Microsoft has just announced the public preview of their new Windows Virtual Desktop (WVD) offering at Microsoft Ignite on Tour in Amsterdam today. For those of you who’ve not followed the rumors or the private beta, here’s the outline... Continue Reading
A Practical Guide To VDI Change Management, Part 3

A Practical Guide to VDI Change Management

Part 3: Change Accelerates with Windows 10 The third in an 8-part series, this practical guide to VDI Change Management gives you the low-down on the what, why and how of Windows 10 updates and changes Continue Reading
Login VSI Blog - Teaser Image - A Practical Guide to VDI Change Management - Part 2

A Practical Guide to VDI Change Management

Part 2: Why VDI is very sensitive to change The second in an 8-part series, this practical guide to VDI Change Management highlights the importance of effective Change Management. With all the complexities of VDI environments, any failure can severely impact your business. Continue Reading
Cookie Settings