What is Adaptive voltage scaling (AVS)?

A technique that measures each chip's speed and temperature on chip and approaches the minimum voltage at which it works, trimming wasted margin.

Adaptive voltage scaling (AVS) in the explanations

With AVS, on-chip ring oscillators or delay-measuring circuits check actual speed, and voltage is adjusted to just what that chip needs, accounting for temperature and aging.
Which describes the idea behind adaptive voltage scaling (A…
But margin also wastes power, so it is reduced through stronger power delivery networks, AVS and similar techniques.
Which is NOT a reason chips need margin in their supply vol…