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Novel dynamic power management technique for multi-core based mobile devices

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3 Author(s)
Youngho Ahn ; Dept. of Electron., Hanyang Univ., Seoul ; Young-Si Hwang ; Ki-Seok Chung

In this paper, we address a novel system-level low power management technique which is specifically targeted for an ARM 11 MPCore system. Our proposed solution is a DPM technique which includes process monitoring, real time power analysis, and policy application to reduce the power consumption while meeting the performance requirement. One of the main contributions of this paper is that we systematically infer QoS requirements of processes without getting any additional information from the application. When multiple processes are running under various user-level policies, priorities of the policy application are determined in such a way that the overall system performance is maintained while power consumption is effectively managed. Experimental results show that our DPM technique is very effective in reducing power consumption without violating system's QoS requirements.

Published in:

SoC Design Conference, 2008. ISOCC '08. International  (Volume:02 )

Date of Conference:

24-25 Nov. 2008