The work function algorithm for the paging problem

The paging problem is that of deciding which pages to keep in a memory of k pages in order to minimize the number of page faults in a two-level store. It is a special case of the famous k-server problem. In this paper, we firstly show that WFA is kM/m-competitive for the k-server problem where the d...

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Veröffentlicht in:Theoretical computer science Jg. 930; S. 100 - 105
Hauptverfasser: Zhang, Wenming, Hu, Huan, Cheng, Yongxi, Li, Hongmei, Wang, Haizhen
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier B.V 21.09.2022
Schlagworte:
Competitive analysis
k-server problem
Online algorithm
Paging problem
Online algorithm
k-server problem
Competitive analysis
Paging problem
ISSN:0304-3975, 1879-2294
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Zusammenfassung:The paging problem is that of deciding which pages to keep in a memory of k pages in order to minimize the number of page faults in a two-level store. It is a special case of the famous k-server problem. In this paper, we firstly show that WFA is kM/m-competitive for the k-server problem where the distances between two points are all in [m,M] (0<m≤M), and thus WFA is k-competitive for the paging problem. And we further show that the well known FIFO for the paging problem is just a special case of WFA.
ISSN:0304-3975
1879-2294
DOI:10.1016/j.tcs.2022.07.014