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perf(07-01): eliminate redundant lookups in SetQueue Phase 2

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- Add phase1Meta parameter to resolveRemainingTracks
- Filter out already-resolved paths before lookupTrackMetaBatch call
- Merge Phase 1 results into Phase 2 lookup map
- Pass batchMeta from SetQueue call site to resolveRemainingTracks
- For 1000-track queue with Phase 1 resolving 50, Phase 2 now queries 950 instead of 1000
This commit is contained in:
yonlu
2026-03-04 20:58:22 -05:00
parent cdd17db275
commit ced58fe6a9
4 changed files with 134 additions and 23 deletions
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.planning/REQUIREMENTS.md
+2 -2
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@@ -30,7 +30,7 @@ Requirements for the consolidation milestone. Each maps to roadmap phases.
- [ ] **PERF-01**: Queue single-track mutations (add, remove) use incremental INSERT/DELETE via existing sqlc queries instead of full table rewrite
- [ ] **PERF-02**: SetQueue Phase 2 (resolveRemainingTracks) skips file paths already resolved in Phase 1, avoiding redundant database lookups
- [ ] **PERF-03**: Library store constructor no longer calls eagerFetch(); data loads lazily on first access via existing getTracks()/getAlbums()/etc. getters
- [x] **PERF-03**: Library store constructor no longer calls eagerFetch(); data loads lazily on first access via existing getTracks()/getAlbums()/etc. getters
- [x] **PERF-04**: SQLite connection applies performance PRAGMAs (synchronous=NORMAL, cache_size=-8000, mmap_size=67108864) at database open
- [ ] **PERF-05**: Frontend track/album lists use Lit repeat() directive with stable keys (filePath/albumId) for efficient DOM reuse, and store notifications are debounced via queueMicrotask() during rapid updates
@@ -104,7 +104,7 @@ Which phases cover which requirements. Updated during roadmap creation.
| QUAL-04 | Phase 6: SQL Consolidation & Code Quality | Complete |
| PERF-01 | Phase 7: Backend Performance | Pending |
| PERF-02 | Phase 7: Backend Performance | Pending |
| PERF-03 | Phase 7: Backend Performance | Pending |
| PERF-03 | Phase 7: Backend Performance | Complete |
| PERF-04 | Phase 3: Test Infrastructure | Complete |
| PERF-05 | Phase 8: Frontend Performance & UX | Pending |
| TEST-01 | Phase 3: Test Infrastructure | Complete |