Accelerate compiler start time

General Usage Performance
1

I am developing a CLI package CLI.jl, but it seems that the start time of the compiler makes a CLI script slower than a Python script or an executable. (precompile is on)

I tried to use static-julia to compile it to an executable, but I got segment fault…

So I am wondering if there is any other approach to accelerate launch time of such a CLI script?

module tcli

using CLI

"""
build docstring
"""
@fire function build(;help=false)
    println("-- build")

    if help
        return Docs.doc(build)
    end
end

struct Foo
end

function (f::Foo)()
    println("hello")
end

a = Foo()

println(CLI.ENVS["entries"])

@fire a

b = 2
@fire b


Base.@ccallable function julia_main(ARGS::Vector{String})::Cint
    main(ARGS)
    return 0
end

end
1 Like
2

See the stuff mentioned on PackageCompiler.jl. The README talks about some segfaults with AOT compilation and what to do.

Yes, without AOT compilation command line scripts have quite a bit of startup time. Thanks for taking on this problem since I know a lot of people will be happy to see a solution there.

3

On OS X at least there’s a bug that makes any executable crash as soon as the GC is triggered, so if you have this there’s not much to do afaik.

@Roger-luo you can test if you are affected by this issue, but also set this variable to global const since that might also cause problems.

4

Thanks for reply. However, it seems the only solution for AOT compile’s segment faults is to use gdb, according to this README.md… I am wondering if it is possible to generate like C code and link it back to libjulia? Do you if there is anyone who have tried this before?