An Online Overclocking Scheme for Bursty Real-time Tasks and an Evaluation of its Thermal Impact
Björn Forsberg, Kai Lampka, Vasileios Spiliopoulos · 2016
This paper proposes a scheme which drives a processor beyond its rated operation frequency, e. g., by exploiting Intel's boost technology, to digest the peak workload of the system in time. In the setting of deadline constrained workloads, this is far from trivial: the boost mode can only be used during short time spans, therefore it can only help to digest the peak workload, rather than serving the normal case. A lowered processor frequency, used outside the peak workload time, yields a backlog of not completed jobs. This backlog may result in deadline violations or buffer overflows, if the next burst of job arrivals appears too early.