DynOR (dynamic OpenRISC) is the first microprocessor that supports dynamic adjustment of the clock period in each cycle based on the instructions that are currently in flight in its pipeline. The idea enables performance improvements that can also translate into power savings by using supply voltage scaling while maintaining a given average performance.
The details of the design and the achievable performance and energy-efficiency improvements are reported in a paper to be presented at ESSCIRC 2016 at EPFL in Lausanne, Switzerland.
Related Publications
DynOR: A 32-bit Microprocessor in 28 nm FD-SOI with Cycle-By-Cycle Dynamic Clock Adjustment (ESSCIRC 2016)
Microarchitectural Low-Power Design Techniques for Embedded Microprocessors [Chapter 5] (PhD dissertation, J. Constantin, 2016)