FirmLeak: A Framework for Efficient and Accurate Runtime Estimation of Leakage Power by Firmware

Author

Joseph, A. ; Haridass, A. ; Lefurgy, C. ; Rachamalla, S. ; Pai, S. ; Chinnakkonda, D. ; Goyal, V.

fYear

2015

fDate

3-7 Jan. 2015

Firstpage

464

Lastpage

469

Abstract

Separating the dynamic power and leakage power components from total microprocessor power can enable new optimizations for cloud computing. To this end, we introduce FirmLeak, a new framework that enables accurate, real-time estimation of microprocessor leakage power by system software. FirmLeak accounts for power-gating regions, per-core voltage domains, and manufacturing variation. We present an experimental evaluation of FirmLeak on a POWER7+ microprocessor for a range of hardware parts, voltages and temperatures. We discuss how this can be used in two applications to manage power by 1) improving billing of energy for cloud computing and 2) optimizing fan power consumption.

Keywords

firmware; microprocessor chips; power aware computing; power consumption; FirmLeak; POWER7+ microprocessor; cloud computing; dynamic power components; fan power consumption; firmware; leakage power components; manufacturing variation; microprocessor leakage power; optimizations; per-core voltage domains; power-gating regions; real-time estimation; runtime estimation; system software; total microprocessor power; Abstracts; Estimation; Hardware; Microprocessors; Microprogramming; Power demand; Runtime;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Design (VLSID), 2015 28th International Conference on

Conference_Location

Bangalore

ISSN

1063-9667

Type

conf

DOI

10.1109/VLSID.2015.84

Filename

7031778