Can I keep some things compiled?

[LarryD]

When I start Juno, I wait ~10 secs for "spinning .... " to complete. Then if I need, say, "using pyplot", I wait another ~15 secs. I am just learning Julia, so I often make mistakes in my test programs, and it's not uncommon to need to interrupt Julia to stop something I inadvertently created. But then I have to go back through "using pyplot" + whatever else my program needs.  Is there any way to separate stuff that's already compiled from stuff that I'm working on so that the already compiled stuff can stay compiled?

Thanks

[Yichao Yu]

On 0.4 yes. https://github.com/JuliaLang/julia/pull/8745

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[felip...@gmail.com]

On 0.3, I think your best option is to build a custom system image with precompiled modules on it.

On 0.4, there´s added support for incremental module precompilation using Base.compile(:module).

Check http://docs.julialang.org/en/latest/manual/modules/#module-initialization-and-precompilation

And also https://github.com/JuliaLang/julia/blob/release-0.3/base/precompile.jl