Confessions of a VMware Secret Agent – NVIDIA GRID and Blast Extreme – answers!

I have a new secret double life! I’ve recently been involved in doing the live chat and Q&A from NVIDIA GRID webinars. If you never attended our webinars but you are interested in NVIDIA GRID technologies you should consider trying it. They usually take the format of a 1+ hour Webinar hosted by internal technology specialists like Support, Readiness or Product Management. We will show live demos, hints and best practices. And also we have regular Guest Speakers or partners involved.

Our next webinar is on Thursday 12th May 2016 (8am PST/11AM EST/4PM UK): “See How Virtual GPU Technology Can Increase User Productivity and Reduce IT Cost.”

Continue reading Confessions of a VMware Secret Agent – NVIDIA GRID and Blast Extreme – answers!

Microsoft RDP: End-client H.264 (4:4:4) Hardware-decode Support on existing decoders 4:2:0! Elegant and Cool!

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Great pictorial explanation on Microsoft Blogs!

Microsoft have just announced a series of tech preview enhancements to their RDP protocol, which you can read here. I’ve blogged endlessly about the problems of image quality for CAD line data and text with H.264 4:2:0 protocols which have been a long established standard for older encoders and GPUs.

The Microsoft announcement gives a very good overview (with pictures) of some of the visual issues that can arise with H.264 4:2:0 in their announcement – which I recommend looking at, here. Continue reading Microsoft RDP: End-client H.264 (4:4:4) Hardware-decode Support on existing decoders 4:2:0! Elegant and Cool!

Comparing Apples to Pears! Benchmarking Thinwire Compatibility and Other HDX Graphics Modes

applesOne of our really experienced experts has just done a blog on some evaluation he did on Citrix’s hot new graphics mode: http://trentent.blogspot.ca/2015/09/performance-differences-in-citrix-hdx.html. Now this guy knows what he is doing but I’m a little worried others might not fully understand what has been done or the implications for the results. Trent did some tests flipping the encoder via a registry key. We do not encourage users to play with registry keys, occasionally they can prove useful to tweak a system, but really if that is being done we should be exposing the control via properly documented policies.

Continue reading Comparing Apples to Pears! Benchmarking Thinwire Compatibility and Other HDX Graphics Modes

Citrix XenDesktop/XenApp – Understanding the HDX “Extra Color Compression” Policy

  • Update (16th Aug 2015) – Now a CTX: CTX201802 – FAQ: HDX Extra Color Compression (ECC) Policy in XenApp and XenDesktop

Extra Color Compression (ECC) is a policy that can be applied to control how HDX manages bandwidth vs. quality and other resources (e.g. CPU). It is documented in the XenDesktop and XenApp product documentation here.

What is Extra Color Compression (ECC)?

Continue reading Citrix XenDesktop/XenApp – Understanding the HDX “Extra Color Compression” Policy

HDX and H.264 Artefacts in Citrix XenDesktop/XenApp

Desktops are made of pixels

Images and desktops that make your screen consist of pixels. Your desktop in the datacenter or on your physical PC can be represented as a bitmap, where all the pixels are represented by 4 values: Continue reading HDX and H.264 Artefacts in Citrix XenDesktop/XenApp