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A working-set sensitive page replacement policy for PCM-based swap systems

Title
A working-set sensitive page replacement policy for PCM-based swap systems
Authors
Park Y.Bahn H.
Ewha Authors
반효경
SCOPUS Author ID
반효경scopus
Issue Date
2017
Journal Title
Journal of Semiconductor Technology and Science
ISSN
1598-1657JCR Link
Citation
Journal of Semiconductor Technology and Science vol. 17, no. 1, pp. 7 - 14
Keywords
Replacement policyVirtual memoryWorking-setCLOCKPhase-change memory
Publisher
Institute of Electronics Engineers of Korea
Indexed
SCIE; SCOPUS; KCI WOS scopus
Document Type
Article
Abstract
Due to the recent advances in Phage-Change Memory (PCM) technologies, a new memory hierarchy of computer systems with PCM is expected to appear. In this paper, we present a new page replacement policy that adopts PCM as a high speed swap device. As PCM has limited write endurance, our goal is to minimize the amount of data written to PCM. To do so, we defer the eviction of dirty pages in proportion to their dirtiness. However, excessive preservation of dirty pages in memory may deteriorate the page fault rate, especially when the memory capacity is not enough to accommodate full working-set pages. Thus, our policy monitors the current working-set size of the system, and controls the deferring level of dirty pages not to degrade the system performances. Simulation experiments show that the proposed policy reduces the write traffic to PCM by 160% without performance degradations. © 2017, Institute of Electronics Engineers of Korea. All rights reserved.
DOI
10.5573/JSTS.2017.17.1.007
Appears in Collections:
엘텍공과대학 > 컴퓨터공학과 > Journal papers
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