Zerocopy: Zero‑Copy Memory Sharing for Flutter
Test the zerocopy package in your Flutter app to confirm <10 ms transfer times for 10 MB data.
Test the zerocopy package in your Flutter app to measure transfer latency and ensure UI stays at 120 FPS.
Summary
Zerocopy is a Flutter package that eliminates the copy tax by enabling direct memory sharing between the Dart VM and native C++ code. The library bypasses serialization and cloning, keeping GC pressure at zero and allowing developers to move large data blobs—up to 10 MB—in under 10 ms across 100 iterations. Benchmarks show MethodChannel taking ~4,200 ms, Dart Isolate ~1,800 ms, while zerocopy completes in less than 10 ms.
The package is targeted at heavy native data pipelines such as machine‑learning models, camera feeds, and real‑time audio buffers, and it keeps the UI locked at 120 FPS during transfers. The source code is published on pub.dev, with a technical deep‑dive on Medium and a portfolio link for the author. Developers can drop a star on GitHub if the tool proves useful for their stack.
Key changes
- Direct memory sharing between Dart VM and native C++ without serialization
- Zero GC pressure during data transfer
- Benchmarks: MethodChannel ~4,200 ms, Dart Isolate ~1,800 ms, zerocopy <10 ms
- Designed for ML models, camera feeds, and real‑time audio buffers
- Maintains UI at locked 120 FPS during transfers