Abstract
Flash memory is a storage medium that is becoming more and more popular. Though not yet fully embraced in traditional computing systems, Flash memory is prevalent in embedded systems, materialized as commodity appliances such as the digital camera and the MP3 player that we are enjoying in our everyday lives. The cost of block cleaning is an important factor that strongly influences Flash memory file system performance analogous to the seek time in disk storage based systems. We show that three performance parameters, namely, utilization, invalidity, and uniformity characteristics of Flash memory strongly effect this block cleaning cost and present a model for the block cleaning cost based on these parameters. We validate this model using synthetic workloads on commercial Flash memory products.
This work was supported in part by grant No. R01-2004-000-10188-0 from the Basic Research Program of the Korea Science & Engineering Foundation.
This work was supported in part by MIC & IITA through IT Leading R&D Support Project.
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Baek, S., Choi, J., Lee, D., Noh, S.H. (2007). Model and Validation of Block Cleaning Cost for Flash Memory . In: Vassiliadis, S., Bereković, M., Hämäläinen, T.D. (eds) Embedded Computer Systems: Architectures, Modeling, and Simulation. SAMOS 2007. Lecture Notes in Computer Science, vol 4599. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-73625-7_7
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DOI: https://doi.org/10.1007/978-3-540-73625-7_7
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