HIgh CPU utilization on Qt6 application

rakesh3 — Mon, 22 May 2023 07:31:23 GMT

Hi team.

I am using the Qt6 application which uses the vivante Driver for GPU, i am using the Linux BSP version 5.10.175 with imx-gpu-viv version of 6.4.3.

On running the single qt6 application on imx6qsabresd board, i can see that %CPU utilization is around 220% and on running 4 similar applications its going up to 75% per CPU utilization, which seems really huge.

check top o/p in Irix mode on (shift + i).

I am testing the GPU openglwindow application.

Is this much CPU utilization normal in this case or abnormal, please give suggestion on this issue.

Attached top command o/p.

Regards,

Re: HIgh CPU utilization on Qt6 application

Sanket_Parekh — Wed, 24 May 2023 12:28:11 GMT

Hi @rakesh3

I hope you are doing well

One can try to read the GPU usage from the command line to confirm that rather the GPU is in use or not and it is increasing with increasing the number of running applications.

Further, the IMX6 has VPU for decoding purposes and GPU for rendering purposes. If you are playing the media, kindly try to use GStreamer, and for decoding use VPUdec(hardware decoder). it will help to reduce the load of the CPU.

Thanks & Regards,

Sanket Parekh

i.MX ProcessorsのトピックHIgh CPU utilization on Qt6 application

HIgh CPU utilization on Qt6 application

Re: HIgh CPU utilization on Qt6 application