The CPU IO usage is too high when I write to eMMC. How can I solve the problem

In normal times, the io performance is about 5%~30%.

We removed the logging function during the OTA upgrade, which reduced the IO range

Hi Eric ,

Does this issue still exists?

Regards 

Diwakar 

Hi Diwakar:

 Yes,Is there any other way to reduce the IO usage when writing to eMMC

HI Eric ,

Which emmc part you are using is it a custom board on a TI one? Usually the cpu usage is between 1-20% based on the buffer size.

You can see the performance data here 

https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-jacinto7/08_05_00_08/exports/docs/devices/J7/linux/Release_Specific_Performance_Guide.html#id4

Regards
Diwakar

SDK7.3

Hi Eric ,

By the way how you guys are measuring the cpu usage.

As far as i know  mmc controller itself contain ADMA so i am not sure why the cpu usage is this much high also i am not seeing this much 

usage in EVM.

Regards
Diwakar