NDI HX stuttering

[AMAcareprod]

Hello,

I have an application who can load 4 simultaneous NDI feeds, works pretty well with classic NDI but if I load 3 or more NDI HX source, I start to loose frames and get more and more delay.

It's not CPU, GPU or network related.

The feeds look good in Studio Monitor on the same computer.

Is it a known limitation ? Or do you know how to fix that ?

Thanks

[keijiro]

Quick answers:

Is it a known limitation ?

No.

Or do you know how to fix that ?

No.

[keijiro]

It's not CPU, GPU or network related.

Could you tell me how did you determine it's not CPU?

Also could you give information about your environment (platform, Unity version, etc.)?

[AMAcareprod]

Platform: Windows 11
Unity version: 2022.3.10
Package version: 2.1.2

I use less than 40% of my CPU with HX and non HX feeds

Processor Intel(R) Core(TM) i9-9980HK CPU @ 2.40GHz 2.40 GHz
Installed RAM 32.0 GB (31.9 GB usable)
GPU NVIDIA Quadro P2200

[AMAcareprod]

Hello, do you have any leads regarding my problem?

[Teluxx]

Hello, sorry to revisit this topic after all this time, do you find a solution ? It seems that NDI only uses a single thread, which might explain the performance loss you experience when using multiple NDIs.