Why the Kernel/FS cost so much memory after device boot up

Hi,

Can you tell us which version of PSP / DVSDK you are using, and how you determine your memory usage?

Thanks, Niclas

Hi Niclas:

   PSP version: PSP_02_10_00_14

   DVSDK version: dvsdk_2_10_01_18

   Memory usage: setenv bootargs 'console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/nfs nfsroot=172.21.15.3:/home/tracy/motion/nfs/image/filesys,nolock mem=76M video=davincifb:vid0=OFF:vid1=OFF:osd0=720x576x16,4050K dm365_imp.oper_mode=0 davinci_capture.device_type=4'

Thanks for the additional information. But how do you determine that you are using 56M of memory for the operating system. Above you are assigning 76M to Linux, but this doesn't mean it all being used.

Regards, Niclas

Hi Niclas:

    I type the "free" command after camera boot up:

# free
              total         used         free       shared      buffers
Mem:        72860        56512        16348            0            0
Swap:            0            0            0
Total:        72860        56512        16348

  When I try to run other application on the EVM board, it failed due to memory.