b7640e9be4c47724f6b3dfa94b59f2c212307c6a
1 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Claude
|
50eca0627f |
perf: round 12 — auth write-path narrowing, fused quota gate, moka blob-cache index, media single-read, sized listing JSON
Benchmark-gated round (benches/ROUND12.md; every change ships with a BEFORE/AFTER harness + equivalence gates, one candidate rejected by its own bench): DB / query shapes (bench_round12_queries): - NC sharee search: username-only projection instead of the 21-column row (incl. the <=512 KiB avatar) per match, + gin_trgm_ops indexes on auth.users for the leading-wildcard ILIKE (4.98x; 54.7x with index). - Password login: delete the redundant full-row update_user — create_session already stamps last_login_at in its own txn (4.45x per login). - Email-verified stamp: narrow conditional UPDATE (8.9x); OIDC repeat login now compares profile state in memory and issues ZERO queries when nothing changed (was: full 17-column rewrite per login). - Refresh rotation: revoke+insert+stamp fused into one transaction via new rotate_session port method (1.18x). - WOPI CheckFileInfo / authorize_wopi_access: require(Read) + get_file + check(Update) overlapped with tokio::join!, original result precedence (cold 1.34x). - Upload quota gate: user-envelope + drive-cap checks fused into ONE round-trip (check_upload_quotas) — the NC chunked PUT pays this per chunk (1.81x, 2 -> 1 queries/chunk); shared verdict evaluators keep error shapes byte-identical. CPU / allocs (bench_round12_micro): - sized_json: pre-sized listing serialization replacing axum Json's 128 B seed + doubling-realloc chain on files/folder-resources/photos/search responses (1.40x, 13 -> 2 allocs per 500-row page; byte-identical). - Security headers: 4 SetResponseHeaderLayer folded into the CSP middleware pass (5 layers -> 1; 1.43x per request, -26 allocs; header set gated byte-identical incl. 304s). - Media capture-metadata: single-read extraction — nom-exif now parses the buffer kamadak already read (zero-copy Bytes) and videos open once with a kind() dispatch; per-image opens 2-3 -> 1 (1.44x warm geomean, 1.6-3.2x cold cache; extraction outputs gated identical incl. the MIME-mislabel track fallback). - Chunked-upload session ops: owner gate folded into the operation's own DashMap lookup + stack-encoded uuid compare (5 -> 3 lookups, -2 allocs, 1.28x per chunk). Blob cache (bench_blob_cache_index + round-3 regression guard): - CachedBlobBackend index: tokio::sync::Mutex<LruCache> -> moka::sync::Cache with byte weigher. The mutex serialized every cached chunk read and scaled NEGATIVELY (2.08 -> 1.07 Mops/s from 1 -> 2 readers); moka probes are lock-free (2.17x at K=2). Byte budget now enforced by moka (manual current_size + collect_evictions machinery deleted); eviction listener unlinks size-evicted files only (Replaced entries keep their file — gated). Single-flight miss gate unchanged (16 concurrent misses -> 1 fetch re-verified via the round-3 harness). - put_blob now populates the cache BEFORE the inner backend consumes the source file (the old order failed 100% of the time — local renames, S3/Azure delete the source — so the first read after a whole-file put re-downloaded from the remote); inner-put failure invalidates the entry. Frontend (vitest gates): - List-view thumbnails request the 150px icon rendition instead of 400px preview into a 40px slot (~7.1x fewer pixels, ~4-5x fewer bytes per thumbnail across list views); grid keeps preview. Rejected by its own bench (kept as evidence in bench_round12_micro §2): - Single-pass compression predicate: the monomorphized And-chain already costs ~4.6 ns / 0 allocs total; the fused node measured within noise. New migration: 20260719000000_users_search_trgm.sql (trgm indexes). Deferred with prepared design: grouped file/grid view virtualization (single-VirtualRows flatten, the photos pattern) — next round's headline. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BfidAJD5AHw23jtvBUNamB |