並列摘要
NAND fash-based solid-state disks (SSDs) have become widely available and to replace HDDs. Because NAND fash characteristic cause the disadvantage of SSD to degradation of write performance. To improve the write performance, the TRIM command is used. In this paper we discuss how TRIM effect the performance, we sperate aecting factors into three parts:1.Host behaviors, 2.Interface bandwidth and 3. Device internal behaviors. We design several experiments to observed the aecting factors. Discussed when and why TRIM command is benefit for write performance or when can degradation write performance.
參考文獻
[3] T. Frankie, G. Hughes, and K. Kreutz-Delgado, Analysis of trim commands on overpro-visioning and write amplication in solid state drives," arXiv preprint arXiv:1208.1794, 2012.
[8] Y.-C. Lee, C.-T. Kuo, and L.-P. Chang, Design and implementation of a virtual platform of solid-state disks," Embedded Systems Letters, IEEE, vol. 4, no. 4, pp. 90{93,
[1]T. Frankie, G. Hughes, and K. Kreutz-Delgado, A mathematical model of the trim command in nand-fash ssds," in Proceedings of the 50th Annual Southeast Regional
Conference, ser. ACM-SE '12. New York, NY, USA: ACM, 2012, pp. 59{64. [Online].Available: http://doi.acm.org/10.1145/2184512.2184527
[2] T. Frankie, G. Hughes, and K. Kreutz-Delgado, Solid State Disk Object-Based Storage with Trim Commands," ArXiv e-prints, Oct. 2012.