I just tried it out of curiosity and the startup time is absolutely brutal:
-▶ time dotnet ./Clojure.Main.dll <<<""
Clojure 1.10.0-beta1
user=> user=>
dotnet ./Clojure.Main.dll <<< "" 16.74s user 0.18s system 99% cpu 16.980 total
Compared to Clojure on JVM:
-▶ time clojure -e '(System/exit 0)'
clojure -e '(System/exit 0)' 3.02s user 0.16s system 268% cpu 1.184 total
I wonder, did I do something wrong (I'm not a .NET developer by any stretch) or does it simply take that much time on the CLR?
.NET may suffer from the same problem as Julia: the first runs will trigger the jit system and result in awful start times. There are ways to avoid this, but I don't know if it works (yet) for clojure.