了解eMMC存储设备的修剪、丢弃和后台命令的含义

Byungjoon Kim, Donghyun Kang, Changwoo Min, Y. Eom
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引用次数: 8

摘要

近年来,eMMC以其低成本、小体积、低功耗等特点在移动设备中得到了广泛的应用。本文分析了基于Trim、Discard、Background等命令的eMMC特性,探讨了这些命令如何影响NAND闪存的随机写入性能和寿命。此外,我们还提出了一种利用后台命令提高eMMC随机写入性能的方法。我们的实验结果清楚地表明,我们的方法在随机写入性能方面平均优于普通的断电方法173%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Understanding implications of trim, discard, and background command for eMMC storage device
Recently, eMMC is widely being used in mobile devices because of its characteristics such as low cost, small size, and low power consumption. In this paper, we analyze features of eMMC based on commands such as Trim, Discard, and Background to investigate how do commands affect the random write performance and lifetime of the NAND flash memory. Also, we propose a method that uses the Background command to improve the random write performance of eMMC. Our experimental results clearly show that our method outperforms the normal power-off method, on average, by 173% in terms of the random write performance.
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