⚡ Bolt: Optimize CreateEconomicMetrics LINQ allocations#319
⚡ Bolt: Optimize CreateEconomicMetrics LINQ allocations#319google-labs-jules[bot] wants to merge 1 commit into
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Replaced a massive memory allocation bottleneck involving nested `.SelectMany()`, `.Distinct()`, `.GroupBy()`, and `.ToDictionary()` inside `CreateEconomicMetrics`. By unrolling the complex LINQ aggregation pipeline into a set of manual nested `foreach` loops utilizing a reusable `HashSet` and a single pre-allocated dictionary, this severely reduces GC pressure and speeds up economic reporting calculations after each simulation step.
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💡 What: Replaced a complex
SelectMany().Distinct().GroupBy().ToDictionary()LINQ pipeline inCreateEconomicMetricswith nestedforeachloops and a reusableHashSet.🎯 Why: To eliminate severe garbage collection pressure and allocation overhead caused by evaluating complex chained LINQ queries and creating multiple intermediate enumerators on the UI thread when calculating simulation results.
📊 Impact: Significantly reduces UI memory allocations and thread pauses after completing large simulation runs by shifting from multiple$O(N)$ closures/allocations to a single fast pass with $O(1)$ loop tracking.
🔬 Measurement: Verify by executing large complex simulations and measuring the memory heap allocations specifically around
WorkspacePresentation.CreateEconomicMetrics(). The time and GC allocations spent generating metrics post-simulation should be significantly reduced.PR created automatically by Jules for task 12922836998283748229 started by @wnj00524