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tidaldb/tidal/benches
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jx12n bb21e69ae6 feat(m12): vector retrieval G1/G2 — recall harness, ANN in RETRIEVE, index tuning 
m12p1 (measurement truth): TidalDb::vector_search_items pure k-NN probe +
POST /vector_search (standalone + region node, merge-by-distance) +
tidal-stress --verify-recall (deterministic id-keyed corpus, in-RAM brute-force
cosine oracle, open-loop ramp → recall@k + true p99 + read-knee + JSON/gate exit).
Repaired fabricated p99 columns (mean-as-p99) in social-scale.md / scale.rs.
Verified real: recall@10=0.9997 at 20k/1536-D vs brute-force.

m12p2 (G1 unblock): ANN candidate-gen wired into RETRIEVE — for_you=preference
vector, related=seed embedding (similar_to), graceful scan-fallback. Cached
per-signal-type top-K (signals/ledger/hot_top_k.rs, decay-order-invariant) so
trending serves O(K). related over HTTP (FeedQuery.similar_to). Harness gains
--feed-profile / --seed-preferences. Verified: trending retrieve p99 3.5-7.7ms.

m12p3 (G2): per-query ef_search now honored (RwLock epoch-guard with_expansion,
shared guard for same-ef concurrency) + dimension-aware brute→HNSW crossover
usearch_min_vectors(dim) + memory_usage() + examples/ann_grid_search.rs.
Measured 1536-D/100k clustered: default M=16/ef_c=400/F16/ef_s=200 clears
G1+G2 (recall 0.997, p99 1.4ms); F16 -0.25% vs F32; Int8 rejected (-28%).
Recall corpus is now clustered (Gaussian mixture) in grid + harness.
2026-06-14 11:07:09 -06:00
..
diversity.rs perf(m11): kill signal_snapshot allocation cascade (perf-sweep wave 2 T1) 2026-06-13 01:53:08 -06:00
filters.rs feat: complete Milestones 2–4 — RETRIEVE query, vector index, ranking profiles, diversity, entity system, sessions 2026-02-21 16:24:48 -07:00
fusion.rs feat: Bazel build, crate docs/ai-lookup, docker images, and engine hardening 2026-06-07 18:29:38 -06:00
query.rs feat: Bazel build, crate docs/ai-lookup, docker images, and engine hardening 2026-06-07 18:29:38 -06:00
ranking.rs feat(m11): observability+ops (m11p8) + perf-sweep wave 2 T2 2026-06-13 09:17:49 -06:00
recovery.rs feat: Bazel build, crate docs/ai-lookup, docker images, and engine hardening 2026-06-07 18:29:38 -06:00
scale.rs feat(m12): vector retrieval G1/G2 — recall harness, ANN in RETRIEVE, index tuning 2026-06-14 11:07:09 -06:00
search.rs feat: Bazel build, crate docs/ai-lookup, docker images, and engine hardening 2026-06-07 18:29:38 -06:00
session.rs feat: Bazel build, crate docs/ai-lookup, docker images, and engine hardening 2026-06-07 18:29:38 -06:00
signals.rs feat: Bazel build, crate docs/ai-lookup, docker images, and engine hardening 2026-06-07 18:29:38 -06:00
social.rs feat: Bazel build, crate docs/ai-lookup, docker images, and engine hardening 2026-06-07 18:29:38 -06:00
sort.rs feat: Bazel build, crate docs/ai-lookup, docker images, and engine hardening 2026-06-07 18:29:38 -06:00
storage.rs feat: Bazel build, crate docs/ai-lookup, docker images, and engine hardening 2026-06-07 18:29:38 -06:00
text_index.rs fix: M0-M10 third-pass remediation — durability, replication, and CLI hardening 2026-06-08 10:28:34 -06:00
vector.rs feat(m12): vector retrieval G1/G2 — recall harness, ANN in RETRIEVE, index tuning 2026-06-14 11:07:09 -06:00
wal.rs feat(m11): cluster security (m11p7) + perf instrumentation floor 2026-06-13 01:25:35 -06:00