Blast/h264 degrading web animations

[sjesse]

A good webpage to reproduce what I see is icloud.com.if I use pcoip

with blast

Its slight in the images, but there is slight "blocky-ness" to the animation behind which I'm assuming is the h264 encoder. I have no qos enabled either by GPO or Horizon Smart Policies using UEM. Do I need to switch back to PCOIP for better quality, or is there a change we can make.

[techguy129]

It's the h264 decoding. You can disable it in the client or agent if you prefer to continue to use blast.

Configure VMware Blast Options

[sjesse]

Turing off h.264 decoding actually made it worse. I suspect I need to enable lossless compression

Enabling Lossless Compression for VMware Blast

or just switch to pcoip by default.

[prince55241000]

Please try to enable the UDP protocol for the Blast and then check whether that will fix the issue.

You can find the settings in the ADMX template of VMware horizon view

Computer Configuration > Policies > Administrative Templates > VMware Blast

UDP protocol and enable it

[john_its]

I recently did perform a couple of tests with PCoIP at default settings and Blast at H264 and PNG.

PCoIP while it seemed to have the better quality it was very very laggy, even when I played a bit with different options. It also had the higher CPU usage on the VM

H264 was ok but at times, the image to the user was becoming a bit blurry. 

PNG has good enough quality, better than H264 and has the lowest CPU consumption so far from both PCoIP and H264 on the VM side.

We are working on Blast with PNG for the past few days and we have a drop of 12-15% of CPU consumption on the hosts.

At least these are the results for us.

[nire2019]

Would it be possible to provide your settings?

As we are on the same task it would be really helpful.

We did some experiments with h.264 and YUV444.

As we have Nvidia Grid support the CPU usage is very low and quality is quite good but some users are complaining they are feeling some lag when moving windows.

Thank you