Write amplification analysis in flash-based solid state drives

By Xiao-Yu Hu, Evangelos Eleftheriou, R. Haas, I. Iliadis, Roman A. Pletka. Annual Haifa Experimental Systems Conference, 2009

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Error Characterization, Mitigation, and Recovery in Flash-Memory-Based Solid-State Drives (2017, methodology): “For a greedy garbage collection algorithm and a random-access workload, the correlation between WA and OP can be calculated [48, 67], as shown in Figure 5.”
X-Stream: edge-centric graph processing using streaming partitions (2013, background): “All X-Stream writes are sequential and therefore avoid the problem of write amplification [34], in a manner similar to log-structured filesystems [52] and memory allocators built specifically for flash devices [16].”
SSD Failures in Datacenters: What? When? and Why? (2016, background): “Reallocations result in reduction of reserve space, which plays an important role in reducing write amplification and wear-leveling [17].”
The Bw-Tree: A B-tree for new hardware platforms (2013, background): “While flash has fast random and sequential reads, it needs an erase cycle prior to write, making random writes slower than sequential writes [7].”