TY - GEN
T1 - Reducing instruction TLB's leakage power consumption for embedded processors
AU - Lei, Zhao
AU - Xu, Hui
AU - Ikebuchi, Dasuke
AU - Amano, Hideharu
AU - Sunata, Tetsuya
AU - Namiki, Mitaro
PY - 2010/11/24
Y1 - 2010/11/24
N2 - This paper presents a leakage efficient instruction TLB (Translation Lookaside Buffer) design for embedded processors. The key observation is that when programs enter a physical page following instructions tend to be fetched from the same page for a rather long time. Thus, by employing a small storage structure which stores the recent address-translation information, the TLB access frequency can be drastically decreased and the instruction TLB can be turned into the low leakage mode with the dual voltage supply technique. Based on such a design philosophy, three different implementation policies are proposed. Evaluation results with eight MiBench programs show that the proposed design can reduce the leakage power of the instruction TLB by 50% on average, with only 0.01 % performance degradation.
AB - This paper presents a leakage efficient instruction TLB (Translation Lookaside Buffer) design for embedded processors. The key observation is that when programs enter a physical page following instructions tend to be fetched from the same page for a rather long time. Thus, by employing a small storage structure which stores the recent address-translation information, the TLB access frequency can be drastically decreased and the instruction TLB can be turned into the low leakage mode with the dual voltage supply technique. Based on such a design philosophy, three different implementation policies are proposed. Evaluation results with eight MiBench programs show that the proposed design can reduce the leakage power of the instruction TLB by 50% on average, with only 0.01 % performance degradation.
KW - Embedded processor
KW - Instruction TLB
KW - Leakage power
UR - http://www.scopus.com/inward/record.url?scp=78449266805&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78449266805&partnerID=8YFLogxK
U2 - 10.1109/GREENCOMP.2010.5598277
DO - 10.1109/GREENCOMP.2010.5598277
M3 - Conference contribution
AN - SCOPUS:78449266805
SN - 9781424476138
T3 - 2010 International Conference on Green Computing, Green Comp 2010
SP - 477
EP - 484
BT - 2010 International Conference on Green Computing, Green Comp 2010
T2 - 2010 International Conference on Green Computing, Green Comp 2010
Y2 - 15 August 2010 through 18 August 2010
ER -