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首页> 外文期刊>Computers, IEEE Transactions on >RT-PLRU: A New Paging Scheme for Real--Time Execution of Program Codes on NAND Flash Memory for Portable Media Players
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RT-PLRU: A New Paging Scheme for Real--Time Execution of Program Codes on NAND Flash Memory for Portable Media Players

机译：RT-PLRU：一种用于便携式媒体播放器的NAND闪存上实时执行程序代码的新分页方案

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摘要

NAND flash memory has been widely used as a nonvolatile storage for storing data. However, it is challenging to execute program codes on NAND flash memory, since NAND flash memory only supports page-based reads, not byte-level random reads. This paper proposes an automated process to find the optimal paging strategy called RT-PLRU (Real-Time constrained combination of Pinning and LRU) that allows program codes stored in NAND flash memory to be executed satisfying real-time requirements with minimal usage of RAM. Moreover, the proposed process optimally configure the RT-PLRU in a developer-transparent way without giving any burden to the program developer. The developed technique is specifically applied to a media player program targeting a portable media player (PMP). To the best of our knowledge, this is the first effort to use NAND flash memory as a code storage for storing and executing real-time programs with minimal usage of RAM.
机译：NAND闪存已经被广泛用作用于存储数据的非易失性存储器。但是，在NAND闪存上执行程序代码具有挑战性，因为NAND闪存仅支持基于页面的读取，而不支持字节级随机读取。本文提出了一种自动过程，该过程可以找到称为RT-PLRU（实时受限的Pinning和LRU组合）的最佳分页策略，该策略允许执行存储在NAND闪存中的程序代码，以最小的RAM使用量满足实时要求。而且，所提出的过程以开发者透明的方式最佳地配置了RT-PLRU，而不会给程序开发者带来任何负担。所开发的技术专门应用于针对便携式媒体播放器（PMP）的媒体播放器程序。据我们所知，这是首次使用NAND闪存作为代码存储来以最少的RAM使用来存储和执行实时程序的尝试。

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