# Very slow pre-compiling and \`using\`of custom Julia package

**URL:** https://discourse.julialang.org/t/very-slow-pre-compiling-and-using-of-custom-julia-package/24708
**Category:** General Usage
**Created:** [May 28, 2019, 8:59pm UTC](https://discourse.julialang.org/t/very-slow-pre-compiling-and-using-of-custom-julia-package/24708 "2019-05-28T20:59:18Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Ronis\_BR](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ronis_br/32/50999_2.png) [@Ronis\_BR](https://discourse.julialang.org/u/Ronis_BR)
#### Post date: [May 28, 2019, 9:29pm UTC](https://discourse.julialang.org/t/very-slow-pre-compiling-and-using-of-custom-julia-package/24708/2 "2019-05-28T21:29:48Z")

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Not an expert here, but there is a lot to load. Maybe the compilation of your package is not slow, but loading everything is. In this case, there is not much you can do except from compiling a custom system image as described in [PackageCompiler.jl](https://github.com/JuliaLang/PackageCompiler.jl).

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