Dynamic Clustering Page Allocation for Read-Intensive Multimedia Streaming Applications
2024 IEEE 21ST CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE, CCNC(2024)
摘要
CFDP and PFCD page allocation schemes are commonly adopted for datacenter SSDs. However, they have limitations on improving read performance as their fixed allocation unit of a single page causes the layout of related data to be dispersed. This paper proposes the Dynamic Clustering Page Allocation scheme, which dynamically adjusts the allocation unit by considering the characteristics of application-level I/Os to find an optimal trade-off between the utilization of channel-level parallelism and internal flash-chip features. Our simulation study shows that the DCPA scheme improves throughput for read-intensive applications compared to CFDP/PFCD by a factor of 1.59 - 3.15.
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关键词
SSD,Page Allocation,I/O Characteristics
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