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Reduce symbol buffers memory by using instancing (Core optimization)#4383

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alexcristici wants to merge 9 commits into
maplibre:mainfrom
alexcristici:symbol-instancing
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Reduce symbol buffers memory by using instancing (Core optimization)#4383
alexcristici wants to merge 9 commits into
maplibre:mainfrom
alexcristici:symbol-instancing

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@alexcristici

@alexcristici alexcristici commented Jul 7, 2026

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Before:

symbolBucketsMem: 141_748_976 bytes
symbolBucketsCount: 79
zoom: 16.4259

After:

symbolBucketsMem: 56_696_400 bytes
symbolBucketsCount: 79
zoom: 16.4259

Improvement: 2.5x

(with symbol instances +72 MB)

@alexcristici alexcristici self-assigned this Jul 7, 2026
@github-actions github-actions Bot added the core Changes that affect the C++ core of MapLibre Native label Jul 7, 2026
@alexcristici alexcristici changed the title Symbol instancing Optimize symbol buffers by using instancing (Core optimization) Jul 7, 2026
@alexcristici alexcristici changed the title Optimize symbol buffers by using instancing (Core optimization) Reduce symbol buffers memory by using instancing (Core optimization) Jul 7, 2026
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github-actions Bot commented Jul 7, 2026 •
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Bloaty Results (iOS) 🐋

Compared to main

    FILE SIZE        VM SIZE    
 --------------  -------------- 
  +0.2% +26.6Ki  +0.2% +32.0Ki    TOTAL

Full report: https://maplibre-native.s3.eu-central-1.amazonaws.com/bloaty-results-ios/pr-4383-compared-to-main.txt

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