notesum.ai

Published at December 6

Gaze into the Pattern: Characterizing Spatial Patterns with Internal Temporal Correlations for Hardware Prefetching

cs.AR

Released Date: December 6, 2024

Authors: Zixiao Chen, Chentao Wu, Yunfei Gu, Ranhao Jia, Jie Li, Minyi Guo

Arxiv: http://arxiv.org/pdf/2412.05211v1

Refer to caption

Structure	Description	Storage
FT	$8$ -way; $64$ entries, each containing: $\bullet$ Region Tag ( $36$ b) & LRU ( $3$ b) $\bullet$ Hashed PC ( $12$ b) & Trigger offset ( $6$ b)	456B
AT	$8$ -way; $64$ entries, each containing: $\bullet$ Region Tag ( $36$ b) & LRU ( $3$ b) $\bullet$ Hashed PC ( $12$ b) & stride_flag ( $1$ b) $\bullet$ Trigger & Second offset ( $2\times 6$ b) $\bullet$ Last & Penultimate offset ( $2\times 6$ b) $\bullet$ Bit vector ( $64$ b)	1128B
PHT	$4$ -way; $256$ entries, each containing: $\bullet$ Tag ( $6$ b) & LRU ( $2$ b) & Bit vector ( $64$ b)	2304B
DPCT	Fully-associative, $8$ entries, each containing: $\bullet$ Hashed PC ( $12$ b) & LRU ( $3$ b)	15B
PB	$8$ -way; $32$ entries, each containing: $\bullet$ Region Tag ( $36$ b) & LRU ( $3$ b) $\bullet$ Prefetch Pattern ( $64\times 2$ b)	668B
Total		4.46KB