Memory Management & Performance
Memory Management & Performance Overview
Dart provides robust memory management and performance optimization capabilities. The garbage collector automatically handles memory allocation/reclamation, while const objects and compile-time constants optimize memory usage. Performance profiling tools help identify bottlenecks, and benchmarking techniques enable measurable optimizations. These features are essential for building high-performance Dart applications.
Key Concepts and Techniques
1. Garbage Collection in Dart
- Automatic memory management system
- Generational garbage collector (young/old space)
- Isolate-specific heaps with no shared memory
2. Const Objects and Compile-Time Constants
- Immutable values determined at compile-time
- Memory efficiency through object reuse
- Best practices for const constructors
3. Performance Profiling Basics
- CPU and memory profiling with DevTools
- Identifying expensive widget rebuilds
- Memory leak detection techniques
4. Benchmarking and Optimization Tips
- Measuring execution time with Stopwatch
- Microbenchmarking with benchmark_harness
- Optimization golden rules
5. Memory Leak Prevention
- Common leak patterns in Dart
- Using WeakReferences and Expando
- Event listener management