Affiliation:
1. National Taiwan University of Science and Technology, Taipei, Taiwan
Abstract
Emerging critical issues for flash-memory storage systems, especially with regard to implementation within many embedded systems, are the programmed I/O nature of data transfers and their energy-efficient nature. We propose an I/O request mechanism in the Memory-Technology-Device (MTD) layer to exploit the programmed I/O-based data transfers for flash-memory storage systems. We propose to revise the waiting function in the Memory-Technology-Device (MTD) layer to relieve the microprocessor from busy-waiting, in order to make more CPU cycles available for other tasks. An energy-efficient mechanism based on the I/O request mechanism is also presented for multi-bank flash-memory storage systems, which particularly focuses on switching the power state of each flash-memory bank. We demonstrate that the energy-efficient I/O request mechanism not only saves more CPU cycles to execute other tasks, but also reduces the energy consumption of flash-memory, based on experiments incorporating realistic system workloads.
Funder
National Science Council Taiwan
Publisher
Association for Computing Machinery (ACM)
Subject
Electrical and Electronic Engineering,Computer Graphics and Computer-Aided Design,Computer Science Applications
Cited by
4 articles.
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2. ELOFS: An Extensible Low-overhead Flash File System for Resource-scarce Embedded Devices;IEEE Transactions on Computers;2022
3. VSSD;ACM Transactions on Design Automation of Electronic Systems;2015-09-28
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