WARP: Memory Subsystem Effective for Wrapping Bursts of a Cache

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/486959.do
DOI
10.4218/etrij.17.0116.0710
Title
WARP: Memory Subsystem Effective for Wrapping Bursts of a Cache
Description
This research was supported by the Basic Science Research Programthrough the National Research Foundation of Korea (NRF) funded by theMinistry of Science, ICT & Future Planning (2014R1A1A1002262).
abstract
State-of-the-art processors require increasingly complicated memory services for high performance and low power consumption. In particular, they request transfers within a burst in a wrap-around order to minimize the miss penalty of a cache. However, synchronous dynamic random access memories (SDRAMs) do not always generate transfers in the wrapround order required by the processors. Thus, a memory subsystem rearranges the SDRAM transfers in the wraparound order, but the rearrangement process may increase memory latency and waste the bandwidth of on-chip interconnects. In this paper, we present a memory subsystem that is effective for the wrapping bursts of a cache. The proposed memory subsystem makes SDRAMs generate transfers in an intermediate order, where the transfers are rearranged in the wrap-around order with minimal penalties. Then, the transfers are delivered with priority, depending on the program locality in space. Experimental results showed that the proposed memory subsystem minimizes the memory performance loss resulting from wrapping bursts and, thus, improves program execution time.
provenance
Made available in Cube on 2018-09-28T16:21:30Z (GMT). No. of bitstreams: 0
language
English
author
Jang, Wooyoung
accessioned
2018-09-28T16:21:30Z
available
2018-09-28T16:21:30Z
issued
2017
citation
ETRI JOURNAL(39): 3
issn
1225-6463
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/486959.do
Funder
미래창조과학부
Funding Program
개인연구지원
Project ID
1711036345
Jurisdiction
Rep.of Korea
Project Name
Development of low-power microserver SoC efficient for cloud service
rights
openAccess
subject
Cache
SDRAM
Wrapping burst
System-on-chip
type
article


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