New Results on Fair Multi-threaded Paging

The Multi-threaded Paging problem (MTP) was introduced as a generalization of Paging for the case where there are many threads of requests. This models situations in which the requests come from more than one independent source. At each step it is necessary to decide which request to serve among sev...

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Detalles Bibliográficos
Autor principal: Strejilevich de Loma, Alejandro
Formato: Articulo
Lenguaje:Inglés
Publicado: 1998
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/135545
https://publicaciones.sadio.org.ar/index.php/EJS/article/view/133
Aporte de:
id I19-R120-10915-135545
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Informáticas
Multi-threaded Paging
on-line algorithms
spellingShingle Ciencias Informáticas
Multi-threaded Paging
on-line algorithms
Strejilevich de Loma, Alejandro
New Results on Fair Multi-threaded Paging
topic_facet Ciencias Informáticas
Multi-threaded Paging
on-line algorithms
description The Multi-threaded Paging problem (MTP) was introduced as a generalization of Paging for the case where there are many threads of requests. This models situations in which the requests come from more than one independent source. At each step it is necessary to decide which request to serve among several possibilities, and also (as in normal Paging) which page of fast memory to remove on a page fault. In the fair version of the problem any algorithm must guarantee that the next request of each thread will be served within a predetermined finite time.In this paper we reduce the existing gaps between the known lower and upper bounds for the competitiveness of on-line algorithms for the fair version of MTP. We treat some particular situations, with finite and infinite input sequences. We prove higher lower bounds and present a new on-line algorithm. We close the gap for the case in which the cache can hold only one page; surprisingly, we obtain different bounds for even and odd number of sequences; we prove that any lazy algorithm achieves the on-line lower bound when the number of sequences is odd.Research supported in part by EC project DYNDATA under program KIT, and by UBACyT projects ``Algoritmos Eficientes para Problemas On-line con Aplicaciones'' and ``Modelos y Técnicas de Optimización Combinatoria".
format Articulo
Articulo
author Strejilevich de Loma, Alejandro
author_facet Strejilevich de Loma, Alejandro
author_sort Strejilevich de Loma, Alejandro
title New Results on Fair Multi-threaded Paging
title_short New Results on Fair Multi-threaded Paging
title_full New Results on Fair Multi-threaded Paging
title_fullStr New Results on Fair Multi-threaded Paging
title_full_unstemmed New Results on Fair Multi-threaded Paging
title_sort new results on fair multi-threaded paging
publishDate 1998
url http://sedici.unlp.edu.ar/handle/10915/135545
https://publicaciones.sadio.org.ar/index.php/EJS/article/view/133
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