HI ，
When receiving a frame image from VI with 4K60 input and assigning OSD text through FD file descriptor, the process of drawing OSD will cause CPU usage to increase by 30%, which occasionally causes the VI to print a timeout error message. Why does the OSD assignment process consume so much CPU even though the size of the text box is not large?
CODE:
NvOSD_TextParams textParams;
textParams.display_text = text;
textParams.x_offset = x;
textParams.y_offset = y;
textParams.font_params.font_name = “Arial”;
textParams.font_params.font_size = 5;
textParams.font_params.font_color.red = 0.0;
textParams.font_params.font_color.green = 0.0;
textParams.font_params.font_color.blue = 1.0;
textParams.font_params.font_color.alpha = 1.0;
//ąłž°Í¸Ă÷
textParams.text_bg_clr.alpha = 0.0;
nvosd_put_text(nvosd_context, MODE_GPU, fd, 1, &textParams);