Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 반효경 | * |
dc.date.accessioned | 2016-08-28T11:08:09Z | - |
dc.date.available | 2016-08-28T11:08:09Z | - |
dc.date.issued | 2009 | * |
dc.identifier.isbn | 9781605586274 | * |
dc.identifier.other | OAK-13340 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/229350 | - |
dc.description.abstract | NAND flash memory is widely used as secondary storage in mobile embedded systems such as cellular phones and digital cameras. These systems usually employ a compressed file system (CFS) to store system files which are fixed during the design phase, in combination with a normal file system to store data files. Since retrieving pages from a CFS requires additional decompression time, it is reasonable to grant them higher priorities when making a page replacement decision. In this paper, we present a new page replacement algorithm for NAND flash memory based embedded systems that considers asymmetric operation cost of each page. The proposed algorithm considers the decompression cost of a page from CFS as well as the asymmetric I/O costs of reads and writes in flash memory. To do this, the algorithm partitions the memory space into a read area, a write area, and a compressed area depending on different operation costs. The size of each area is then dynamically adjusted based on the change of access patterns and the contribution to reducing the I/O costs. Trace-driven simulations show that the proposed algorithm improves the I/O performance of mobile embedded systems significantly. Specifically, it reduces I/O time by 4.8-53.3% compared to widely acknowledged algorithms such as CLOCK, CAR, and CFLRU. Copyright 2009 ACM. | * |
dc.description.sponsorship | IEEE Council on Electronic Design Automation;IEEE Circuits and Systems Society;IEEE Computer Society;ACM SigMicro;ACM SigBED | * |
dc.language | English | * |
dc.title | A cost-aware page replacement algorithm for NAND flash based mobile embedded systems | * |
dc.type | Conference Paper | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 315 | * |
dc.relation.lastpage | 324 | * |
dc.relation.journaltitle | Embedded Systems Week 2009 - Proceedings of the 7th ACM International Conference on Embedded Software, EMSOFT '09 | * |
dc.identifier.doi | 10.1145/1629335.1629377 | * |
dc.identifier.scopusid | 2-s2.0-72249100821 | * |
dc.author.google | Park J. | * |
dc.author.google | Lee H. | * |
dc.author.google | Hyun S. | * |
dc.author.google | Koh K. | * |
dc.author.google | Bahn H. | * |
dc.contributor.scopusid | 반효경(7003994561) | * |
dc.date.modifydate | 20240315133816 | * |