Andrew Lock | .NET Escapades Andrew Lock

Making foreach on an IEnumerable allocation-free using reflection and dynamic methods

In this post I describe why foreach sometimes allocates, and show how you can use DynamicMethod and Reflection.Emit to go allocation-free…

Creating a .NET CLR profiler using C# and NativeAOT with Silhouette

In this post I look at how to create a simple .NET profiler. But instead of using C++, the profiler uses C# and NativeAOT with the Silhouette library…

In this post I show how to work with [UnsafeAccessor] to do 'easier' reflection and how to use .NET 10's [UnsafeAccessorType] with types you can't reference…

Using default interface methods for performance gains in IHeaderDictionary

In this post I look at an example of how default interfaces were used to improve the performance of IHeaderDictionary…

A brief look at StringValues

In this post I look at the StringValues type, where it's used in ASP.NET Core, why it's useful, how it's implemented, and why.…

In this post I discuss the ValueStringBuilder type, used internally in .NET as a zero/low-allocation alternative to StringBuilder…