CLR/H #111 及び .NET Conf 2025 Tokyoでの発表資料 関連資料 GitHub
Overhead + Complexity = Time Overhead is unavoidable. There is some level inherent in every product construction process. However, when we add complexity to our product construction processes, especially complexity in the graph, the overhead tends to begin to dominate the process. It sort of multiplies. Rather than paying the machine queue time cost one time, you might pay it 10 times over within
We are bringing .NET MAUI to Linux and to the browser, powered by Avalonia. For the past few months, we have been working on an Avalonia powered backend for .NET MAUI, with guidance and feedback from engineers in the MAUI ecosystem. What started as an experiment has grown into a project we are committing to, with apps already running on new platforms. It is time to show you what we have been build
Today, we are excited to announce the launch of .NET 10, the most productive, modern, secure, intelligent, and performant release of .NET yet. It’s the result of another year of effort from thousands of developers around the world. This release includes thousands of performance, security, and functional improvements across the entire .NET stack-from languages and developer tools to workloads-enabl
I admit, that's a very click-baity headline, but Microsoft have given the vulnerability a CVSS score of 9.9, their highest ever. Time to panic, right? In this post I try to provide a bit more context. I explain how request smuggling vulnerabilities work in general, how it works in this case, what attackers could use it for, how the vulnerability was fixed, what you can do to protect yourself. WARN
dotnet/runtime#110827 from @hez2010 also helps more methods to be inlined by doing another pass looking for opportunities after later phases of devirtualization. The JIT’s optimizations are split up into multiple phases; each phase can make improvements, and those improvements can expose additional opportunities. If those opportunities would only be capitalized on by a phase that already ran, they
.NET 10 is now available: the most productive, modern, secure, intelligent, and performant release of .NET yet. We are super excited to introduce a new feature that was released as part of .NET 10 Preview 4 that makes getting started with C# easier than ever. You can now run a C# file directly using dotnet run app.cs. This means you no longer need to create a project file or scaffold a whole appli
NuGetにはVisual Studioでパッケージをインストールするときに自動的に実行されるスクリプトの仕組みがあります、それがtools/init.ps1です。 前々からNuGetパッケージインストール時に警告なくスクリプトが実行されて嫌だなぁだと思っていましたが、今回はその理由を考えてみます。 init.ps1とは tools/init.ps1の現状 init.ps1の実行を確認する init.ps1ができること init.ps1の実行を止められるのか init.ps1の懸念 背景1. tools/init.ps1の存在が事前にわからない 背景2. パッケージバージョンロックが普及していない init.ps1を使った攻撃は過去にすでに起こっている init.ps1の代替手段 まとめ init.ps1とは NuGetパッケージにtools/init.ps1というスクリプトを配置すること
Today, we are excited to announce the launch of .NET 9, the most productive, modern, secure, intelligent, and performant release of .NET yet. It’s the result of another year of effort on the part of thousands of developers from around the world. This new release includes thousands of performance, security, and functional improvements. You will find sweeping enhancements across the entire .NET stac
Iterating with Span<T> when Possible Let’s start by running this benchmark on .NET 8 versus .NET 9. using BenchmarkDotNet.Configs; using BenchmarkDotNet.Running; using BenchmarkDotNet.Attributes; using BenchmarkDotNet.Jobs; BenchmarkRunner.Run<Benchmarks>(); [MemoryDiagnoser] [HideColumns("StdDev", "Median", "Job", "RatioSD", "Error", "Gen0", "Alloc Ratio")] [SimpleJob(RuntimeMoniker.Net80, baseli
Some other notable examples: Improved SIMD comparisons. dotnet/runtime#104944 and dotnet/runtime#104215 improve how vector comparisons are handled. Improved ConditionalSelects. dotnet/runtime#104092 from @ezhevita improves the generated code for ConditionalSelects when the condition is a set of constants. Better Const Handling. Certain operations are only optimized when one of their arguments is a
Starting with .NET 9, we no longer include an implementation of BinaryFormatter in the runtime (.NET Framework remains unchanged). The APIs are still present, but their implementation always throws an exception, regardless of project type. Hence, setting the existing backwards compatibility flag is no longer sufficient to use BinaryFormatter. In this blog post, I’ll explain why this change was mad
Instantly test any C#/F#/VB snippet or program Query databases in LINQ (or SQL) — SQL/Azure, SQLite, Postgres, Oracle & MySQL Experience rich output formatting through the legendary dump! Enjoy full autocompletion with C#, F#, VB and SQL Access integrated debugging and advanced AI, including SQL-to-LINQ conversion Script and automate in your favorite .NET language, with all the benefits of a REPL
C# / .NET における、パフォーマンス改善の Tips をお届けします。 これを見れば、効率良く 80 点を取ることができるようになるはずです！
.NET 10 is now available: the most productive, modern, secure, intelligent, and performant release of .NET yet. We are happy to announce the availability of .NET 8, the latest LTS version of one of the world’s leading development platforms, starting today. .NET 8 delivers thousands of performance, stability, and security improvements, as well as platform and tooling enhancements that help increase
Here is a dumb question that you probably never asked yourself: What is the minimal amount of bytes we need to store in a .NET executable to have the CLR print the string"Hello, World!" to the standard output? How small can we get? In this post, we will explore the limits of the .NET module file format, get it as small as possible, while still having it function like a normal executable on a typic
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