Mastering Memory Management and Garbage Collection in .NET - Learning Roadmap | Nemorize

✅ Memory Fundamentals

• ✅ Stack Allocation
  • ⚪ Stack frame lifecycle
  • ⚪ Stack limitations
  • ✅ Stackalloc and Span<T>
• ✅ Heap Allocation
  • ✅ Object header and layout
  • ⚪ Small Object Heap (SOH)
  • ⚪ Large Object Heap (LOH)
• ✅ Value vs Reference Types
  • ⚪ Struct semantics
  • ✅ Boxing and unboxing
  • ⚪ Reference type overhead

✅ Garbage Collection Fundamentals

• ✅ Generational Model
  • ⚪ Gen0 ephemeral collection
  • ⚪ Promotion mechanics
  • ⚪ Gen2 and full collections
• ✅ GC Roots and Tracing
  • ⚪ Root types
  • ⚪ Mark and sweep
  • ⚪ Finalization pipeline
• ✅ Collection Triggers
  • ⚪ Allocation threshold
  • ⚪ Induced collections
  • ⚪ Memory pressure signals

✅ GC Modes and Adaptive Behavior

• ✅ Workstation vs Server GC
  • ⚪ Workstation GC
  • ⚪ Server GC
  • ⚪ Choosing the right mode
• ✅ Background and Concurrent GC
  • ⚪ Background GC mechanics
  • ⚪ Foreground vs background pauses
  • ⚪ Non-concurrent workstation fallback
• ✅ DATAS
  • ⚪ Allocation rate feedback
  • ⚪ Latency vs throughput decisions
  • ⚪ What DATAS doesn't change

✅ Retention Bugs in Managed Code

• ⚪ Event Handler Leaks
  • ⚪ Strong references via delegates
  • ⚪ Unsubscribe patterns
  • ⚪ Static event anti-pattern
• ⚪ Cache and Collection Leaks
  • ⚪ Unbounded static caches
  • ⚪ Dictionary key retention
  • ⚪ TimerQueue and callback leaks
• ✅ Diagnostic Techniques
  • ⚪ Memory snapshots and diffs
  • ⚪ Shortest root path analysis
  • ⚪ GC event traces

✅ Modern Allocation Primitives

• ✅ Span<T> and ReadOnlySpan<T>
  • ⚪ ref struct constraints
  • ⚪ Slicing without allocation
  • ⚪ stackalloc integration
• ✅ Memory<T> and ReadOnlyMemory<T>
  • ⚪ Async method compatibility
  • ⚪ MemoryManager<T> backing
  • ⚪ Field storage and lifetime
• ✅ Safe vs Unsafe Patterns
  • ✅ Span escape analysis
  • ⚪ Use-after-free prevention
  • ⚪ Unsafe buffer access

✅ Buffer Ownership and Pooling

• ✅ ArrayPool<T>
  • ⚪ Rent and return discipline
  • ⚪ Shared vs custom pools
  • ⚪ Array size bucketing
• ✅ IBufferWriter<T> and Writers
  • ⚪ IBufferWriter<T> contract
  • ⚪ ArrayBufferWriter<T>
  • ⚪ Custom writer implementations
• ✅ ReadOnlySequence<T>
  • ⚪ Segment-based enumeration
  • ⚪ SequenceReader<T>
  • ⚪ Position and slicing