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Reposted by nietras

nohwnd @jakubjares.com · Aug 22

In .NET10 we are rolling out new dotnet test experience for Microsoft.Testing.Platform. I worked on the outputs together with Mariam and other folks in our team. Here is where we ended up. Hope you like it :)

devblogs.microsoft.com/dotnet/dotne...

#dotnet #microsofttestingplatform

Enhance your CLI testing workflow with the new dotnet test - .NET Blog

Learn how .NET 10 transforms dotnet test with native Microsoft.Testing.Platform integration, delivering better performance and enhanced diagnostics.

devblogs.microsoft.com

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nietras @nietras.bsky.social · May 26

New blog post "How to Get Windows 8.3 Short File Names Using FindFirstFileW (UNC) and GetShortPathName (local) in C#"

A propos #Microsoft 50 year anniversary and how on earth we still have to deal with this 😅 #dotnet #csharp

👇
nietras.com/2025/05/26/w...

How to Get Windows 8.3 Short File Names Using FindFirstFileW (UNC) and GetShortPathName (local) in C#

Working with files and directories on Windows, especially on network shares, often leads to issues with long paths. This post explains what Windows 8.3 short paths are, how they work in NTFS, the diff...

nietras.com

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nietras @nietras.bsky.social · May 20

Thanks, is there full code for this somewhere?
For the specific case of Sep I doubt this will be faster given the mask for each special character is used too. Eg mask for column separator is used to check if only separators and quick readout of those which is why Sep is fast for this common case.

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nietras @nietras.bsky.social · May 9

😭

nietras @nietras.bsky.social · May 9

New blog post "Sep 0.10.0 - 21 GB/s CSV Parsing Using SIMD on AMD 9950X 🚀"

📈 Sep #performance from 7 GB/s to 21 GB/s over last two years
🧑‍💻 #csharp #SIMD and #x64 assembly on #dotnet 9.0
🛠️ Tweaks and new #AVX512-to-256 parser
🔢 Lots of benchmarks

👇
nietras.com/2025/05/09/s...

Please repost 🙏

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nietras @nietras.bsky.social · May 8

New blog post "Sep 0.9.0 - Async Support"

Feat. pragmatic #csharp preprocessor trickery and #dotnet sync/async performance comparison.

👇
nietras.com/2025/05/08/s...

Sep 0.9.0 - Async Support

Sep 0.9.0 was released February 1st, 2025 - earlier this year - with a major new feature: Async support for both SepReader and SepWriter.

nietras.com

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nietras @nietras.bsky.social · May 7

New blog post "Sep 0.8.0 - SepWriter Replace StringBuilder with ArrayPool Array"
👇
nietras.com/2025/05/07/s...

#dotnet #csharp

Sep 0.8.0 - SepWriter Replace StringBuilder with ArrayPool Array

Sep 0.8.0 was released January 19th, 2025 - earlier this year - with two notable changes:

nietras.com

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Reposted by nietras

nietras @nietras.bsky.social · Dec 9

New blog post "Sep 0.6.0 - CSV Trim Support, .NET 9 and New Benchmarks incl. Apple M1"
👇
nietras.com/2024/12/07/s...

#dotnet #csharp

Sep 0.6.0 - CSV Trim Support, .NET 9 and New Benchmarks incl. Apple M1

It’s been a while since the last update on Sep, but recently 0.6.0 was released with the following notable changes:

nietras.com

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nietras @nietras.bsky.social · Dec 9

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nietras @nietras.bsky.social · Dec 9

New blog post "Sep 0.6.0 - CSV Trim Support, .NET 9 and New Benchmarks incl. Apple M1"
👇
nietras.com/2024/12/07/s...

#dotnet #csharp

Sep 0.6.0 - CSV Trim Support, .NET 9 and New Benchmarks incl. Apple M1

It’s been a while since the last update on Sep, but recently 0.6.0 was released with the following notable changes:

nietras.com

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nietras @nietras.bsky.social · Dec 6

I definitely did today when I found out that to change the name of column of a 2GB csv file that is in the first line of the file, the file was read into memory as a single string and then Replace(..) called on the entire file... 😅 It's a good thing #dotnet is damn fast!

PS: Please come to mastodon

GitHub - nietras/Sep: World's Fastest .NET CSV Parser. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT ...

World's Fastest .NET CSV Parser. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT compatible. - n...

github.com

nietras @nietras.bsky.social · Dec 6

I have spent a lot of time optimizing my #dotnet CSV parser Sep (github.com/nietras/Sep) to be insanely fast and efficient... sometimes I wonder why...

GitHub - nietras/Sep: World's Fastest .NET CSV Parser. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT ...

World's Fastest .NET CSV Parser. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT compatible. - n...

github.com

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Reposted by nietras

Underfox @underfox3.bsky.social · Nov 26

In this thread, I will highlight some of the works that will be presented in February at ISSCC 2025. There are a lot of interesting news on the way...

Advance Program: submissions.mirasmart.com/ISSCC2025/PD...

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