dotnet-gc-memory
dotnet-gc-memory
Garbage collection and memory management for .NET applications. Covers GC modes (workstation vs server, concurrent vs non-concurrent), Large Object Heap (LOH) and Pinned Object Heap (POH), generational tuning (Gen0/1/2), memory pressure notifications, deep Span/Memory ownership patterns beyond basics, buffer pooling with ArrayPool and MemoryPool, weak references, finalizers vs IDisposable, and memory profiling with dotMemory and PerfView.
Out of scope: Span/Memory syntax introduction and basic usage -- see [skill:dotnet-performance-patterns]. Microbenchmarking setup -- see [skill:dotnet-benchmarkdotnet]. CLI diagnostic tools (dotnet-counters, dotnet-trace, dotnet-dump) -- see [skill:dotnet-profiling]. Channel producer/consumer patterns -- see [skill:dotnet-channels].
Cross-references: [skill:dotnet-performance-patterns] for Span/Memory basics and sealed devirtualization, [skill:dotnet-profiling] for runtime diagnostic tools (dotnet-counters, dotnet-trace, dotnet-dump), [skill:dotnet-channels] for backpressure patterns that interact with memory management, [skill:dotnet-file-io] for MemoryMappedFile usage and POH buffer patterns in file I/O.
GC Modes and Configuration
Workstation vs Server GC
| Aspect | Workstation | Server |
|---|---|---|
| GC threads | Single thread | One thread per logical core |
| Heap segments | Single heap | One heap per core |
| Pause latency | Lower | Higher (more memory scanned) |
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