how to adjust the NPU (on the Snapdragon 8 Gen 3) frequency and measure npu payload

ENV:

a rooted Android phone equipped with the Snapdragon 8 Gen 3 chip.

Question:

I can adjust the CPU/GPU frequency via sysfs (e.g., `echo xxx > /sys/class/kgsl/kgsl-3d0/devfreq/min_freq`).

Are there any methods available to adjust the NPU frequency?

Are there any methods available to measure changes in NPU payload?