Bad delay in decoding of 4 RTSP streams

[newcfd]

This is on Linux with Intel Elkhartlake and va h264 decoder.

intel-gpu-top: Intel Elkhartlake (Gen11) @ /dev/dri/card0 - 450 / 451 MHz 1%RC6; 1342 irqs/s

Engines           BUSY                          MI_SEMA MI_SEMA
Render/3D      99.70%                             0%            0%
Blitter               0.00%                                0%           0%
Video                8.9%                                  0%           0%
VideoEnhance 0.0%                                 0%           0%

No delay with 2 streams. Is this card not good enough for 4 cameras? Or GPU is overused? How to improve the performance of the GPU?

[AlfredoS_Intel]

Hi newcfd,

Thank you for creating a thread on Intel Community Forums.

Since you are requesting assistance for an Embedded Processor, we will be moving it to the correct group who handles those types of processors.

Best Regards,

Alfred S

Intel® Customer Support Technician