docs: design for SimpleMapStore persistence (mem limit + disk flush) - #4

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design/simple-map-store-persistence

Apr 14, 2026

Commits on Apr 14, 2026

docs: design for SimpleMapStore persistence (mem limit + disk flush)

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docs: revise persistence design — memory budget primary, T secondary

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docs: add Tier-2 read-side segment cache for repeat cold queries

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docs: resolve sync-vs-async flush I/O via append-only sealed epochs

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docs: adopt perf-optimal choices across all open questions

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docs: parts-based disk layout (LSM-style), append-only manifest log

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feat(persistence): parts submodule — format, manifest, flusher, cache

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feat(persistence): wire SimpleMapStorePerKey::with_persistence + query read-through

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feat(persistence): per-accumulator approx_memory_bytes sizing

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feat(persistence): CLI wiring for main.rs and precompute_engine.rs

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test(persistence): add #[ignore] perf harness for storage + flusher

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feat(persistence): enforce hard_cap_bytes via insert back-pressure

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