Under 100-cycle Thread Migration Latency in a Single-ISA Heterogeneous Multi-core Processor

摘要

Single-ISA Heterogeneous Multi-core: General purpose cores with different Microarchitectures. tuned tor different energy/performance points Performance and energy of a program can be optimized by migrating among the core types as program characteristics change Prior research has shown as much as a 50% imprwement in energy when migrating every 1 000 cycles versus every 10.000 cycles Such fine-grathed thread migration requires very low low migrabon overhead.