Paging out Multiple Clusters to Improve Virtual Memory System Performance

Woo Hyun AHN  Joon-Woo CHOI  Jaewon OH  Seung-Ho LIM  Kyungbaek KIM  

IEICE TRANSACTIONS on Information and Systems   Vol.E97-D   No.7   pp.1905-1909
Publication Date: 2014/07/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.E97.D.1905
Type of Manuscript: LETTER
Category: Software System
virtual memory system,  page-out,  page clustering,  disk,  

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Virtual memory systems page out a cluster of contiguous modified pages in virtual memory to a swap disk at one disk I/O but cannot find large clusters in applications mainly changing non-contiguous pages. Our proposal stores small clusters at one disk I/O. This decreases disk writes for paging out small clusters, thus improving page-out performance.