How to close useless I/O,To reduce power consumption

How to close useless I/O,To reduce power consumption, The frequency cannot be changed

hello tiantianluxin,

may I know what’s your use-case, please also refer to Supported Modes and Power Efficiency for the Max-Q configurations.
thanks

We’ve already used this method. Any other ways to reduce power consumption

The power consumption has been reduced by adjusting CPU, GPU, and EMC.We want to know if there are ways or tools that can help us:

  1. Determine which devices are allocated to run time power consumption;

  2. In addition to CPU, GPU and memory, which devices or devices can reduce power consumption

hello tiantianluxin,

may I know what’s your expectation, could you please share the use-case?
you may also refer to Kernel Customization chapter to modify deconfig for disabling unnecessary services, and rebuild the kernel manually.
thanks