Oct 10, 2026 · Backend Development

CLR Runtime Deep Dive: Execution Model, Memory Layout, GC & Native AOT

This article provides a comprehensive analysis of the .NET CLR runtime, covering the execution model from CIL to native code, tiered compilation, object memory layout with object headers and method tables, assembly loading via AssemblyLoadContext, Native AOT compilation benefits and limitations, exception handling mechanisms, generational garbage collection, and memory diagnostic tools.

Assembly LoadingCLRGarbage Collection

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CLR Runtime Deep Dive: Execution Model, Memory Layout, GC & Native AOT