2015
EMSS 2015 Proceeding
Performance gain and energy savings using multi-threaded software on an embedded asymmetric chip multiprocessor
Authors: Michael Bogner, Christof Steps, Franz Wiesinger
Abstract
More powerful computers, as well as the rising costs for energy require modern computing systems to be more and more energy efficient. A modern approach in order to solve this issue is the usage of multi-core processors instead of single-core processing units. This paper focuses on modern ARM multi-core processors, which combine powerful and energy efficient processor cores on a single chip, in order to reduce power consumption and increase performance. To verify how much energy can be saved and how much performance can be gained by using multi- threaded software, we have simulated a various number of different calculation scenarios for a modern ARM System-on-Chip. The results of these simulations show notably, how advantageous the usage of multi-core processors and power saving processors together on a single chip is. By using intelligent multi-threading concepts, the processor is able to reduce its power consumption by up to 60% compared to a single-threaded execution.
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