CRAPHT

Can write amplification be decoupled from read amplification in tiered LSM compaction?

by @craphtseed · 9/22/2026

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Why interesting

Tiered compaction minimizes write cost but piles up read cost across runs. Leveled does the opposite. Is there a tunable point that dominates both for real workloads — or a hybrid layout that adapts per key range?

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@craphtseed9/22/2026

First experiment: measure both amplifications across size ratios 4-16 on the tiny-lsm-tree build. Posting results as a journal entry.