TY - GEN
T1 - A power management mechanism for handheld systems having a multimedia accelerator
AU - Ahn, Junho
AU - Min, Jung Hi
AU - Cha, Hojung
AU - Ha, Rhan
PY - 2008
Y1 - 2008
N2 - Recently the demand on high graphic ability has increased in handheld systems due to multimedia or game application. Conventional DVS (dynamic voltage scaling) methods focus on reducing energy consumption of CPU. They didn't consider the influence of multimedia accelerators to make DVS policies. From the preliminary experiment, we found that the conventional DVS algorithm is not optimal to a system with a multimedia accelerator in context of reducing energy consumption of the system. We propose a power management mechanism that guarantees both QoS and reduction of energy consumption by considering the relation between the frequencies of the CPU and the frequencies of the multimedia accelerator. The proposed mechanism is a DVS technique in context of multimedia accelerator. We experimented the proposed mechanism on a testbed equipped with Intel XScale processor and Intel 2700G multimedia accelerator. The experimental result shows that the proposed method reduces energy consumption of the system as much as by 33% compared to conventional CPU-only DVS algorithms.
AB - Recently the demand on high graphic ability has increased in handheld systems due to multimedia or game application. Conventional DVS (dynamic voltage scaling) methods focus on reducing energy consumption of CPU. They didn't consider the influence of multimedia accelerators to make DVS policies. From the preliminary experiment, we found that the conventional DVS algorithm is not optimal to a system with a multimedia accelerator in context of reducing energy consumption of the system. We propose a power management mechanism that guarantees both QoS and reduction of energy consumption by considering the relation between the frequencies of the CPU and the frequencies of the multimedia accelerator. The proposed mechanism is a DVS technique in context of multimedia accelerator. We experimented the proposed mechanism on a testbed equipped with Intel XScale processor and Intel 2700G multimedia accelerator. The experimental result shows that the proposed method reduces energy consumption of the system as much as by 33% compared to conventional CPU-only DVS algorithms.
UR - http://www.scopus.com/inward/record.url?scp=49149102655&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=49149102655&partnerID=8YFLogxK
U2 - 10.1109/PERCOM.2008.82
DO - 10.1109/PERCOM.2008.82
M3 - Conference contribution
AN - SCOPUS:49149102655
SN - 076953113X
SN - 9780769531137
T3 - 6th Annual IEEE International Conference on Pervasive Computing and Communications, PerCom 2008
SP - 663
EP - 668
BT - 6th Annual IEEE International Conference on Pervasive Computing and Communications, PerCom 2008
T2 - 6th Annual IEEE International Conference on Pervasive Computing and Communications, PerCom 2008
Y2 - 17 March 2008 through 21 March 2008
ER -
