COMPARISON OF THE PAGE REPLACEMENT ALGORITHMS FOR MEMORY MANAGEMENT

Yıl 2014, Cilt: 16 Sayı: 46, 43 - 57, 01.01.2014

Ünal Çavuşoğlu Ahmet Zengin

Öz

In this article, memory management techniques which are very essential in database
management system are discussed. The speed and performance values of transactions that
occur on database management systems are greatly effected by buffer management algorithm.
Buffer management algorithms are evaluated by creating parameters as different buffer size,
block number and probabilistic values. Tests are performed and the results are discussed
performance analysis of algorithms. Buffer management algorithms such as Basic, LRU,
Clock and LRM were compared. As a result of the LRU and Clock algorithms are produced
more successful results than other algorithms

Anahtar Kelimeler

Buffer replacement algorithms, FIFO, LRU, Clock, LRM

BELLEK YÖNETİMİNDE SAYFA DEĞİŞİM ALGORİTMALARININ PERFORMANS ANALİZİ

Öz

Bu makalede veri tabanı yönetim sistemlerinde önemli bir yere sahip olan bellek yönetim
teknikleri ele alınmıştır. Veri tabanı yönetim sistemleri üzerinde gerçekleşen işlemlerin hız ve
performans değerleri, kullanılan bellek yönetim algoritması tarafından büyük ölçüde
etkilenmektedir. Bu çalışmada bellek yönetim algoritmaları, tampon boyutu, blok sayısı ve
olasılıksal değerler gibi farklı parametler kullanılarak test edilmiştir. Sonuçlar üzerinden
bellek yönetim algoritmalarının performans analizleri gerçekleştirilmiştir. Bellek yönetim
algoritmalarından, temel bellek yönetim algoritması, FIFO, LRU, LRM ,CLOCK
algoritmaları oluşturulan simülasyon üzerinde test edilmiştir. Simülasyon sonuçları
değerlendirildiğinde LRU ve CLOCK algoritmalarının diğer test edilen algoritmalardan daha
başarılı sonuçlar elde ettiği tespit edilmiştir

Anahtar Kelimeler

Bellek değişim algoritmaları , FIFO, LRU, Clock, LRM

Kaynakça

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