Performance Improvements in .NET Core 2.1
Back before .NET Core 2.0 shipped, I wrote a post highlighting various performance improvements in .NET Core 2.0 when compared with .NET Core 1.1 and the .NET Framework. As .NET Core 2.1 is in its final stages of being released, I thought it would be a good time to have some fun and take a tour through some of the myriad of performance improvements that have found their way into this release.
Performance improvements show up in .NET Core 2.1 in a variety of ways. One of the big focuses of the release has been on the new System.Span type that, along with its friends like System.Memory, are now at the heart of the runtime and core libraries (see this MSDN Magazine article for an introduction). New libraries have been added in this release, like System.Memory.dll, System.Threading.Channels.dll, and System.IO.Pipelines.dll, each targeted at specific scenarios. And many new members have been added to existing types, for example ~250 new members across existing types in the framework that accept or return the new span and memory types, and counting members on new types focusing on working with span and memory more than doubles that (e.g. the new BinaryPrimitives and Utf8Formatter types).