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PR #3208 landed two claims that further measurement disproved. The narrowing is not inconsistent. A true incremental leaf edit rebuilds exactly 8 of the 20 configured indexes -- the tables the writeback DMLs -- and the 20-index run I compared it against was a forced full rebuild (runner-identity trap). Per-index costs for those 8 sum to 7769ms against the 7525ms measured in-analyze. There is nothing to fix in `touchedFts`. The 845ms was not `import('./platform/capabilities.js')`. The CLI already imports that module statically; a cached dynamic import measures 0.035ms. The `await` is the first yield after the native FTS build and absorbs the libuv work still queued behind it. Recorded as a fourth measurement trap, since it invalidates any mark placed on an await that follows native work. What replaces them is a floor, established by probing a copy of the corpus index directly: - narrowing further: nothing left, the 8 tables are exactly the DML'd set - concurrent builds: hard error, one write transaction at a time - connection thread count: flat at 4/8/16/24 (7298/7133/7109/7345ms min-of-3), though the default burns ~60% more CPU for it - dropping `content` from File: 3541ms -> 241ms, but that deletes full-file keyword search (#2317/#2323); capping is a bad trade because the size distribution is flat The one lever left is overlap: the build runs on a libuv thread and hides behind main-thread JS (3337ms for the index plus a 3000ms JS burn, against ~6859ms serial). File rows are `{ name, filePath }` from `processStructure` with content lazy-read at CSV time, so they are known before parsing. What blocks it is that the DB is closed for the whole pipeline and that an early write moves `liveIndexMutationStarted` ahead of it. The `ponytail:` comment in `createSearchFTSIndexes` invited exactly the fix that cannot work -- every caller has already dropped the indexes it passes, so a presence gate would never fire. Replaced with the measured reason. Co-authored-by: Gergo Magyar <gergomagyar0@gmail.com> Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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