Dynamic voltage and frequency scaling for memory in heterogeneous core architectures

Abstract

Embodiments described herein may include apparatus, systems, techniques, and/or processes that are directed to optimizing memory frequency based on the bandwidth and latency needs of heterogeneous processing cores in a computer system. According to various embodiments, adjustments to the frequency of memory may be applied differently depending on the type of core requesting more bandwidth and/or faster response. According to various embodiments, the frequency is increased more sparingly for energy-efficient cores, while the frequency is increased more generously for high-performance cores. Additionally, when memory traffic decreases, the frequency of memory is decreased more generously when the previous request for higher frequency was from an energy-efficient core than a high-performance core. By considering the type of core that is requesting more bandwidth and/or faster response, performance and power consumption may be more optimally balanced.