Performance Improvements in .NET 9

Each year, summer arrives to find me daunted and excited to write about the performance improvements in the upcoming release of .NET. “Daunted,” because these posts, covering .NET 8, .NET 7, .NET 6, .NET 5, .NET Core 3.0, .NET Core 2.1, and .NET Core 2.0, have garnered a bit of a reputation I want to ensure the next iteration lives up to. And “excited,” because there’s such an abundance of material to cover due to just how much goodness has been packed into the next .NET release, I struggle to get it all written down as quickly as my thoughts whirl.

Deep .NET

Join Scott Hanselman and friends and they go deep into topics around .NET.

The Ultimate Guide to Font Performance Optimization

Common Causes of Memory Leaks in JavaScript

Identify and fix common JavaScript memory leaks (Node.js and Deno.js)

Load, Stress, Spike, Soak Testing Using k6 in C#

SQL Server Performance Tuning Series

System Design: How to Scale a Database

Microbenchmark testing Python, Numba, Mojo, Dart, C/gcc, Rust, Go, JavaScript, C#, Java, Kotlin, Pascal, Ruby, Haskell performance in Mandelbrot set generation 

Benchmarking several languages/tools with Mandelbrot set generation. 1-to-1 translation of code from one language to another. No SIMD, no multithreading (except prange() trick with Numba), no tricks (e.g. skipping sqrt), a bare minimum of language specific adjustments to make the code nicer while keeping all loops and operations in place. 

Easily identify which C# dependencies can be removed from an MSBuild project, and expose MSVC output to show unused libraries and delay-load DLLs at link time. Removing project dependencies flattens your build dependency graph which can improve build parallelism and reduce end-to-end build time.