login vsi company logo login vsi company logo 250x40


Avoid VDI problems. Test with Login VSI.

Learn how our industry-standard software solutions can benefit your business

Learn more about our products


The IT-Industry Has Benefitted with Login VSI


For many years now, Login VSI has been the undisputed IT-industry standard in VDI performance load-testing and benchmarking.

All IT vendors (both hardware and software) that are serious about providing their customers with a well-performing virtual desktop infrastructure (VDI), rely on Login VSI software solutions to design and build their products, and to communicate the tangible results to the public. The results of these research and development efforts are visible in many technical publications.

Technology vendors benefit from the Login VSI Vendor Edition (*) in three ways:

1. As a key component of the (behind the door) R&D process 
2. As the performance benchmark to communicate to the market
3. In POC's and pilots to compare infrastructure options, for sizing and scaling
and to do a full scale pre-production load-test/stress-test before production
(*) Login VSI’s Vendor Edition is the new name for classic load-testing solution Login VSI 4.1.

Avoid Problems with Login VSI Vendor Edition

Statistics from Login VSImax and Login VSIbase are widely used by all major IT vendors in VDI reference architectures, validated designs, white papers and presentations. They have grown into the de-facto industry standard statistics to communicate the scalability (VSImax) and the baseline end-user experience (VSIbase) of any centralized virtual desktop environment including VMware Horizon View, Citrix XenApp and XenDesktop, and Microsoft Remote Desktop Services (RDS), formerly known as Terminal Services.

As of 2017 the unique Login VSI testing methodology is officially patented. In addition to the methodology, the patent protects the metrics VSImax, VSIbase and the VSI threshold.

The Login VSI Vendor Program

For IT-vendors who want to position themselves more firmly in the Virtual Desktop Infrastructure space we offer the opportunity to showcase their publications on our website, and in our newsletter (60,000+ relevant readers). This service is available for vendors of hardware like servers, storage, appliances, network components, processors, and vendors of virtual desktop and other (e.g. security) software. We offer two formal programs to our vendor customers: ‘Tested with Login VSI’ and ‘Validated by Login VSI’.

Learn more about The Login VSI Vendor Program:

Click Here



Tested with Login VSI

The following hardware and software vendors have a proven commitment towards providing the best possible end-user experience in virtualized desktop environments. This commitment is displayed through the active use of the industry standard tool Login VSI in their performance and scalability testing efforts. The results of these tests are used to build better products, and are publicly available.

American Megatrends
Micron Technology
Tegile Systems



Core Features Of Our Solution Suites

Our software solutions improve the performance, scalability and availability of your virtual desktop environments.


    Enterprise    Enterprise XL    Vendor  
Contains Login VSI X X X
Contains Login PI X X  
Contains login AT   X  
Works with centralized Windows environments X X  
Scalability testing X X X
Performance testing X X X
Availability testing X X  
Compatibility testing of many applications   X  
IT vendors offering hardware or software
being part of VDI, SBC & DaaS infrastructures

Request Price Request Trial



Expert Testimonials:

Michael Cooper - Citrix

"We use Login VSI as a level set. If we are looking at a system that we are putting on brand new hardware or that we are putting in the cloud, we may see those environments completely differently but the end result is: is the user going to have a good solid happy user experience? And what Login VSI provides us on all three platforms is fairly consistent apples-to-apples comparison: is the user happy?"

Michael Cooper, Director of Solutions Architecture and Global Alliances at Citrix Systems

Randy Groves - Teradici

"As the developer of the PCoIP protocol, we do a lot of our own internal benchmarking to make sure that we’re continuing to improve our protocol. But we can’t actually publish our internal benchmarks because everybody might think that the tests are biased. So when we want to publish results, we use Login VSI. That way, if a customer wants to repeat our results they can.”

Randy Groves, CTO at Teradici

Rob Girard - Tintri

"You would be somewhat nuts to go to production with VDI without first and constantly re-evaluating with Login VSI. Always run all your changes through it so there are no surprises. Surprises in VDI never just hit one or two users--it's all or nothing.”

Rob Girard, Technical Marketing Engineer at Tintri

Andrew Mills - Nutanix

“Predictability is a key piece to VDI. It’s one of reasons that VDI has scared people away, but Login VSI solves that. If you’re going to do it, do it right. Login VSI really gives that rubber stamp on doing it right.”

Andrew Mills, VDI Alliances Manager at Nutanix

  • "Login VSI is about quantifying the number of users I can get on VDI. It's a fantastic thing."

    Brian Madden - EUC guru and blogger at VMware

  • "Login VSI is the industry standard for benchmarking software. It's a key solution."

    Ruben Spruijt - Senior Technologist at Nutanix

  • "With Login VSI, we know what the impact is of new products and new Windows builds"

    Rob Beekmans - Technical Marketing Manager - Citrix

  • "The biggest benefit is gaining visibility of the performance of your environment."

    Christiaan Brinkhoff - Cloud Architect & Technical Evangelist - Microsoft

  • "Login VSI and Login PI allow us to provide a better user experience."

    Kilian Arjona - CTO - Flexxible IT

  • "I actively use Login PI for active monitoring. It helps track user-trends, see degradation through updates and Windows maintenance"

    Leee Jeffries - Managing Director & Consultant - Leee Jeffries Consulting



Our Latest Awards

Our industry-standard software solutions have been honored many times over the years by our peers.

VM World 2018 Award Best Of Digital Workspace Category Small Homepage Carousel
Best of Citrix Synergy 2018
IT Prof
Best Of Citrix Synergy 2016 Finalist Award Desktop And Application Delivery




Start using Login VSI today

Our industry-standard software is built to help you avoid problems, lower costs and improve performance.
Request a price or get your trial below, and benefit from our award-winning services.

Request Price  Request Trial



About the company Login VSI

The company Login VSI provides end-user performance insights for virtualized desktop and server-based computing environments. Enterprise IT departments use flagship product Login VSI (for load testing) and new addition Login PI (for continuity testing) in all phases of their virtual desktop deployment—from planning to deployment to change management—to build and safeguard a good performance, a high availability, and (as a result) a good and consistent end-user experience. For more information about Login VSI or for a free test license contact us.

Cookie Settings

Learn how to simplify your change management process and improve user experience in our next webinar    Learn More