Anzeige
Erschienen in:
2006 | OriginalPaper | Buchkapitel
Least Likely to Use: A New Page Replacement Strategy for Improving Database Management System Response Time
verfasst von : Rodolfo A. Pazos R., Joaquín Pérez O., José A. Martínez F., Juan J. González B., Mirna P. Ponce F.
Erschienen in: Computer Science – Theory and Applications
Verlag: Springer Berlin Heidelberg
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Since operating systems (OSs) file systems are designed for a wide variety of applications, their performance may become suboptimal when the workload has a large proportion of certain atypical applications, such as a database management system (DBMS). Consequently most DBMS manufacturers have implemented their own file manager relegating the OS file system. This paper describes a novel page replacement strategy (Least Likely to Use) for buffer management in DBMSs, which takes advantage of very valuable information from the DBMS query planner. This strategy was implemented on an experimental DBMS and compared with other replacement strategies (LRU, Q2 and LIRS) which are used in OSs and DBMSs. The experimental results show that the proposed strategy yields an improvement in response time for most types of queries and attains a maximum of 97-284% improvement for some cases.