[prakis]

I never used D-lang in any production application.

But for an IOT prototype where the executable size and performance were very important we benchmarked D also along with Go and C#.NET Core.

I made the same prototype in Go, C#, Java(GraalVM Native Compile) and D-lang. The results were surprisingly positive for D-lang.

Best Peformance -> D-lang, next Go and then Java(GraalVM), C#.NET Core.

Executable Size -> D-lang:500kb, Go: 2.5 MB, C# : 11MB, Java(GraalVM):8MB.

Our major concern with D-lang was lack of dependable(tested) standard libraries.

[neonsunset]

AOT size footprint of C# is now smaller than Go (as of .NET 8). Also performance is much better, just write code in a Rust-ish way (struct generics).

If each language is used correctly, Go should come last on the benchmarks.

[schemescape]

C# AOT is down to 1 - 2 MB? Are any tricks required? Is it compressed? Does it have runtime dependencies? How is start up time?

Last time I tried C# AOT (not sure what version, but it was in March of this year) I ended up with a 67 MB (static) executable.

Edit: the docs mention a web app at 8.5 MB (static) on Linux: https://learn.microsoft.com/en-us/aspnet/core/release-notes/...

[chrismsimpson]

Struct generic C# is where it’s at

[amelius]

Question: does D-lang use LLVM under the hood?

[gomoboo]

D has 3 main compiler implementations. One, LDC, is based on LLVM: https://github.com/ldc-developers/ldc

GDC is based on GCC: https://github.com/D-Programming-GDC/gdc

DMD is stand-alone: https://github.com/dlang/dmd