20% faster with NetFramework than Dotnet9.0

[Snake David]

Hello everyone! I hope everything is going well for you.

Recently, I encountered a puzzling issue: generally speaking, the latest .NET 9 should perform better than .NET Framework. However, in my actual testing, I found that in some performance-intensive UDF functions, .NET Framework outperforms .NET 9 by about 20%.

This function is a recursive subset sum function, and the entry function communicates with the recursive part through static public variables. I wonder if anyone has any insights into this issue?

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