# Precompilation techniques for speeding up the first run (Heroku deployments and PackageCompiler)

**URL:** <https://discourse.julialang.org/t/precompilation-techniques-for-speeding-up-the-first-run-heroku-deployments-and-packagecompiler/29327>\
**Category:** General Usage\
**Created:** [September 30, 2019, 2:26pm UTC](https://discourse.julialang.org/t/precompilation-techniques-for-speeding-up-the-first-run-heroku-deployments-and-packagecompiler/29327 "2019-09-30T14:26:20Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![ninjaaron](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ninjaaron/32/6392_2.png) [@ninjaaron](https://discourse.julialang.org/u/ninjaaron)\
**Post date:** [September 30, 2019, 2:36pm UTC](https://discourse.julialang.org/t/precompilation-techniques-for-speeding-up-the-first-run-heroku-deployments-and-packagecompiler/29327/4 "2019-09-30T14:36:59Z")

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Possibly relevant: [What's actually inside precompiled Julia files?](https://discourse.julialang.org/t/whats-actually-inside-precompiled-julia-files/28234)

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