Exploiting asymmetric CPU performance for fast startup of subsystem in mobile smart devices

Jun Kim; Joonwon Lee; Jinkyu Jeong

doi:10.1109/TCE.2015.7064117

Exploiting asymmetric CPU performance for fast startup of subsystem in mobile smart devices

Jun Kim, Joonwon Lee, Jinkyu Jeong

Research output: Contribution to journal › Article › peer-review

Abstract

Fast startup of a subsystem, such as an image subsystem, is important in mobile smart devices because the startup time is directly related to the responsiveness of applications, such as a camera. This paper proposes a CPU switch method that offloads the long initialization phase from the subsystem to the fast main CPU in an application processor. By providing a consistent execution environment in the main CPU, the subsystem software can be easily ported without significant engineering costs. The evaluation results show that the proposed scheme greatly reduces the startup time of the image subsystem by up to 78%.¹

Original language	English
Article number	7064117
Pages (from-to)	103-111
Number of pages	9
Journal	IEEE Transactions on Consumer Electronics
Volume	61
Issue number	1
DOIs	https://doi.org/10.1109/TCE.2015.7064117
Publication status	Published - 2015 Feb 1

Bibliographical note

Publisher Copyright:
© 1975-2011 IEEE.

All Science Journal Classification (ASJC) codes

Media Technology
Electrical and Electronic Engineering

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Exploiting asymmetric CPU performance for fast startup of subsystem in mobile smart devices

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