# Simple tutorial for PackageCompiler sysimage build?

**URL:** <https://discourse.julialang.org/t/simple-tutorial-for-packagecompiler-sysimage-build/27349>\
**Category:** Performance\
**Tags:** question\
**Created:** [August 9, 2019, 10:25am UTC](https://discourse.julialang.org/t/simple-tutorial-for-packagecompiler-sysimage-build/27349 "2019-08-09T10:25:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![LaurentPlagne](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/laurentplagne/32/10103_2.png) [@LaurentPlagne](https://discourse.julialang.org/u/LaurentPlagne)\
**Post date:** [August 9, 2019, 10:25am UTC](https://discourse.julialang.org/t/simple-tutorial-for-packagecompiler-sysimage-build/27349/1 "2019-08-09T10:25:20Z")

</div>

Hi  
I cannot make Julia produce AVX2 instructions (ymm registers) on my machine.  
I use to build the sysimage before PackageCompiler arrival but now it seems that the documentation is a bit broken for this feature.

I am looking for a simple tutorial to build and use a native Julia image with PackageCompiler.  
Any clues ?