High CPU Usage for V4L2 Capture on DM365/8

Hi,

I'm using DM368(in 300 MHZ mode) with DVSDK 4.02.00.06 and I'm seeing %60 CPU usage

for only capturing video with V4L2 APIs. No encode or other operation is running and my input

source is 720p source at 30 fps. Both DMAI CPU load API and top is showing the same number.

Is this normal? I saw a related thread at [1] for PAL resolution, but solution there is not 

working for me.

Thanks,

Caglar

[1] http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/99/t/32127.aspx