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⚡ Bolt: Optimize frontend search filter to reduce GC pressure #422

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⚡ Bolt: Optimize frontend search filter to reduce GC pressure #422

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⚡ Bolt: Optimize frontend search filter to reduce GC pressure
seonghobae Jul 3, 2026
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⚡ Bolt: Optimize frontend search filter to reduce GC pressure
seonghobae Jul 3, 2026
a58cfd0
⚡ Bolt: Optimize frontend search filter to reduce GC pressure
seonghobae Jul 3, 2026
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4 changes: 4 additions & 0 deletions .jules/bolt.md
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Expand Up @@ -60,3 +60,7 @@ Optimized metric route processing to O(N) by creating a mapping of routes direct
## 2026-06-25 - Avoid Map allocations in frontend ERD loops and mutate asyncpg records in-place
**Learning:** The frontend `snapshotToGraph` iterates over thousands of columns to generate the graph, so repeated lookups and redundant collection assignments increase GC pressure. Backend snapshot column dictionaries are freshly instantiated for the payload, so `add_column_examples` can safely fill missing fields in place.
**Action:** Reuse existing collections while aggregating relational data, create `Map`/`Set` entries only on first use, and check for missing example fields before calling expensive inference helpers.

## 2025-03-05 - Optimize Search Filter String Creation
**Learning:** In frontend performance loops filtering large lists of graph nodes, using `.flatMap()` and `.join()` inside the search loop causes severe garbage collection pressure and intermediate array allocations.
**Action:** Prefer manual string concatenation loops (`+=`) over array-based functional chains in hot rendering or filtering paths for large graph nodes when profiling shows performance benefits.
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