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Efficient Management of PCM-based Swap Systems with a Small Page Size

Title
Efficient Management of PCM-based Swap Systems with a Small Page Size
Authors
Park, YunjooBahn, Hyokyung
Ewha Authors
반효경
SCOPUS Author ID
반효경scopus
Issue Date
2015
Journal Title
JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE
ISSN
1598-1657JCR Link

2233-4866JCR Link
Citation
JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE vol. 15, no. 5, pp. 476 - 484
Keywords
Phase-change memoryswap systempaging sizevirtual memory
Publisher
IEEK PUBLICATION CENTER
Indexed
SCIE; SCOPUS; KCI WOS scopus
Document Type
Article
Abstract
Due to the recent advances in non-volatile memory technologies such as PCM, a new memory hierarchy of computer systems is expected to appear. In this paper, we explore the performance of PCM-based swap systems and discuss how this system can be managed efficiently. Specifically, we introduce three management techniques. First, we show that the page fault handling time can be reduced by attaching PCM on DIMM slots, thereby eliminating the software stack overhead of block I/O and the context switch time. Second, we show that it is effective to reduce the page size and turn off the read-ahead option under the PCM swap system where the page fault handling time is sufficiently small. Third, we show that the performance is not degraded even with a small DRAM memory under a PCM swap device; this leads to the reduction of DRAM's energy consumption significantly compared to HDD-based swap systems. We expect that the result of this paper will lead to the transition of the legacy swap system structure of "large memory - slow swap" to a new paradigm of "small memory - fast swap."
DOI
10.5573/JSTS.2015.15.5.476
Appears in Collections:
엘텍공과대학 > 컴퓨터공학과 > Journal papers
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