A selective filter-bank TLB system

  • Authors:
  • Jung-Hoon Lee;Gi-Ho Park;Sung-Bae Park;Shin-Dug Kim

  • Affiliations:
  • Yonsei University, Shinchon-dong, Seoul, Korea;Samsung Electronics Co., Suwon, Korea;Samsung Electronics Co., Suwon, Korea;Yonsei University, Shinchon-dong, Seoul, Korea

  • Venue:
  • Proceedings of the 2003 international symposium on Low power electronics and design
  • Year:
  • 2003

Quantified Score

Hi-index 0.00

Visualization

Abstract

We present a selective filter-bank translation lookaside buffer (TLB) system with low power consumption for embedded processors. The proposed TLB is constructed as multiple banks with a small two-bank buffer, called as a filter-bank buffer, located above its associated bank. Either a filter-bank buffer or a main bank TLB can be selectively accessed based on two bits in the filter-bank buffer. Energy savings are achieved by reducing the number of entries accessed at a time, by using filtering and bank mechanism. The overhead of the proposed TLB turns out to be negligible compared with other hierarchical structures. Simulation results show that the Energy*Delay product can be reduced by about 88% compared with a fully associative TLB, 75% with respect to a filter-TLB, and 51% relative to a banked-filter TLB.