In this paper, a recovery scheme using two page replacement algorithms for MMDB was implemented. The performance of the recovery mechanism as a function of the number of pages and size of pages was measured. From the results, the recovery time increase almost linearly with the increase in the...
4.4.1.2 Page Replacement Algorithms When a page in memory needs to be swapped out to free up some physical memory, a page replacement algorithm is used to select which currently in-memory page should be moved to disk. There are a variety of different page replacement algorithms that can be ...
Some advanced cache replacement algorithms [16], [19] define their own custom cost indexes to enhance cache hit rates and reduce expenses associated with fetching objects from origin servers. GD-size (greedy-dual size) considers both the size and fetching cost of an object, while SW-LFU (serv...
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Thus, while lossy algorithms perform well on image data, loss-less algorithms provide better results on text-based data. Solutions that use a mix of lossy and loss-less data compression are often slow and complex. For example, text and image data are sometimes separated to different channels,...
(c) Write the evict page to the disk. Step 3: Read the required page into the newly created free space Step 4: Restart the process There are many page replacement algorithms such as Optimal, Least Recently Used ((LRU), Not Recently Used (NRU), First-In-First-Out (FIFO), Not ...
There are many page replacement algorithms such as least recently used (LRU), first-in-first-out (FIFO), Optimal and the combination of LRU and least frequently used (LFU) are available in memory management. We can improve the performance of page replacement algorithm either develop a new ...