Hi Marc2510,
My name is Stuart Robinson, Director of Systems Engineering at Teradici. My team provides support for PCoIP deployments including resolving issues that impact desktop performance.
There are a number of factors that can impact video playback performance a
- Client PCoIP protocol decode capability
- Network issues
- View host server loading. As mentioned in the thread, the Teradici APEX 2800 is something to consider as it will move the PCoIP encoding to hardware. This will not help unless the server was limiting the video (I suspect the client is the limitation).
- Single vs dual vCPU (dual vCPU is required when watching >480p window)
- Video player - there are issues with various players (try a different player). This is not related to PCoIP protocol, nor the client performance.
- Source video encoding - we have seen cases where the video encoding was poor - trying a different video on the same player can show significantly different performance results. This is not related to PCoIP protocol.
I recommend looking at the CPU utilization on the igel clients - I suspect that it is max'd out (80% or higher).
Here are some thoughts after a quick look at your log - the log is short so there might be different recommendations with additional logs/information:
- Floor should not be set to 100,000. This parameter should be disabled.
- Try setting the max initial image quality to 70 and the minimum image quality to 50
- Client decode is likely the limitation. See the log entry MGMT_IMG : log: which shows the client decode estimated at 2-4Mbit/s. That indicates that the session bandwidth is being limited by the client decode performance.
- The frame rate is quite low ~3 frames per second and since there is no obvious network issue (again more information would be needed for a full analysis) it appears that the client is the limitation. Where the frame rate spikes to 20fps it is likely that the video window was small, or only a small region of the display was changing at the time.
- Setting a frame rate limit can help a client with limited performance - but for the most part you are only getting 3 fps, so setting a limit won't help much on the video window size used for the logs you provided.
- Setting a limit on the audio bandwidth can help as well if there is a bandwidth limitation in the client network interface (physical hardware of 1Gb link does not equate to the bandwidth processing capability of the client) - I would suggest setting to 90kbps to start. But I would not expect it to make a significant difference in this case. This GPO is only in View 4.6 or newer.
- I highly recommend using a smaller window for the video playback and set a frame rate limit somewhere between 8-12 fps. You will need View 4.6 or newer for this GPO. At 1024x768 displays and a client PCoIP decode rate of 3-4Mbps - I would think it would look a lot better at 1/3 screen video window, or maybe up to 1/2 screen video window with the audio limit (90kbps) and frame rate limit (10fps), max initial image quality 70, min image quality 50.
Please feel free to open a ticket with Teradici on techsupport.teradici.com. Its free to register. My team can dig into the performance and solution recommendations in more detail.
DEVAXTATOR - thanks for your help on this thread!!
Regards,
Stu
