The systems hacker's guide to the galaxy energy usage in a modern smartphone
作者： Aaron Carroll , Gernot Heiser
关键词: Power analysis 、 Embedded system 、 Wireless 、 Global Positioning System 、 Power consumption 、 Operating system 、 Galaxy 、 Instrumentation (computer programming) 、 Computer science 、 Energy (signal processing) 、 Hacker
摘要: Modern smartphones are increasingly performant and feature-rich but remain highly power-constrained. Effective energy management demands an informed policy, to that end we present a detailed power analysis of the Samsung Galaxy S III smartphone. We measure consumption by instrumentation at circuit level, breakdown major components including CPU, RAM, display, GPU, wireless radios, camera, GPS environmental sensors.
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