read a big txt in C#

challenge1.md

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Q: The fastest way to read a text file line by line

47Gb file -> 5hrs
Console.Write each loop -> 45 mins to read the file (.NET 6)

別人用BenchmarkDotnet寫好的測試範例

1.File.ReadLines()
2.Write and read messages from a Dataflow block
3.Memory-mapped files
4.ref: HaveIBeenPwned Helper
5. StreamReader寫法
6. 同4.解法，有用到 System.IO.Pipelines
7. unsafe 解法
8. System.Threading.Channels 解法
9. bufferedstream

https://devblogs.microsoft.com/dotnet/system-io-pipelines-high-performance-io-in-net/
https://timiskhakov.github.io/posts/exploring-spans-and-pipelines

https://www.meziantou.net/split-a-string-into-lines-without-allocation.htm

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Another optimization problem
https://github.com/jeremybytes/digit-display-csharp-comparison (check branches and PRs)
https://github.com/ReubenBond/digit-display-csharp-comparison/tree/reubenbond

How do I generate large files in the short time?