Very slow time to first plot, 2022

[aramirezreyes]

Something to help understand is that precompilation does not mean “ahead-of-time compilation”, but “step before compilation” in this context. Like simon explained in this old post.

Questions about Compiler and Compiling Modules

Should it not be precompiled already? Yes and no! Julia consist of multiple compilation stages: parsing -> lowering -> type inference -> LLVM IR -> native code. The first 2 (maybe partly 3 if all types are fixed) are done during what we call precompilation. The last three only happen when you call a function. using StaticArrays # precompiled m = @SMatrix rand(3, 3) @profiler inv(m) # lots of calls to type inference

So the compilation is still done on first execution. But I agree it is still frustrating. I think I got used to the ~1 minute before being able to do something useful. I go and prepare some coffee before. I am glad that storing compiled code is in the horizon!