Top 20 NuGet performance Packages

Utility classes for timing and counting code block execution.
Eco Tools is a set of classes and methods that helps to develop performance critical code on the top of .NET Framework.
Eco Tools Recycling is a set of classes and methods that helps to develop performance critical code on the top of .NET Framework.
HttpLoadTesting http load generator framework
.net trivial in-process counter implementation (thread-safe)
Provides SIMD-accelerated operations (create, init, map, ...) on native arrays provided by the NativeInterop package Note for F# Users: The System.Numerics.Vectors package doesn't work out of the box for F# projects. Make sure to MANUALLY ADD <HintPath>..\packages\System.Numerics.Vectors.4.1.1\lib\...
Performance Counter measurements facilitated by Castle Interceptors.
Perfon.Core is a core for Perfon.WebApi and Perfon.MVC packages. Perfon.Net is an open source performance monitoring .Net framework for web applications without using windows performance counters. See simple how-to example on https://github.com/magsoft2/Perfon.Net
PostgreSql driver for Perfon.Net. Perfon.Net is an open source performance monitoring .Net framework for web applications without using windows performance counters. See simple how-to example on https://github.com/magsoft2/Perfon.Net
MySql driver for Perfon.Net. Perfon.Net is an open source performance monitoring .Net framework for web applications without using windows performance counters. See simple how-to example on https://github.com/magsoft2/Perfon.Net
Easy benchmarks that are statistically accurate
Immutable persistent collections, algebraic sum-type aka descriminated union, Ref type and supportive extensions for performant functional programming in C#. Split from the DryIoc: https://github.com/dadhi/DryIoc
This is an ASP.NET Module/Handler pair for monitoring your page performance
Redis based high performance analytics.
Get CPU and RAM usage, check process name and whether it's elevated etc.
Lib.AspNetCore.Mvc.ClientHints is a library which provides to ASP.NET Core MVC helpers build around a set of HTTP request header fields, colloquially known as Client Hints, which allow user agents to indicate device and agent specific preferences.
Total wrapper on WMI (Windows Management Instrumentation) namespaces and classes to query hardware and software installed on the system for .NET Standard
Straightforward `nint` and `nuint` native integers, written in IL, probably second best to proper compiler support.
Add App.Metrics to memory and distributed cache
A caching package for Umbraco CMS. Automatically caches result of registered tree crawling and xpath results.