# Do we have something like this 🤔

**URL:** <https://discourse.julialang.org/t/do-we-have-something-like-this/50161>\
**Category:** Internals & Design\
**Tags:** question\
**Created:** [November 14, 2020, 9:23pm UTC](https://discourse.julialang.org/t/do-we-have-something-like-this/50161 "2020-11-14T21:23:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Impressium](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/impressium/32/19575_2.png) [@Impressium](https://discourse.julialang.org/u/Impressium)\
**Post date:** [November 14, 2020, 9:23pm UTC](https://discourse.julialang.org/t/do-we-have-something-like-this/50161/1 "2020-11-14T21:23:24Z")

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> **[Exploring PGO for the Rust compiler | Inside Rust Blog](https://blog.rust-lang.org/inside-rust/2020/11/11/exploring-pgo-for-the-rust-compiler)**
>
> Want to follow along with Rust development? Curious how you might get involved? Take a look!

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**Author:** ![tim.holy](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tim.holy/32/52_2.png) [@tim.holy](https://discourse.julialang.org/u/tim.holy)\
**Post date:** [November 15, 2020, 9:42pm UTC](https://discourse.julialang.org/t/do-we-have-something-like-this/50161/2 "2020-11-15T21:42:50Z")

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PGO would be great to explore in the context of JuliaInterpreter (“interpret unless it’s a bottleneck, then compile”), but that might be different than what you’re after.

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**Author:** ![jebej](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jebej/32/1784_2.png) [@jebej](https://discourse.julialang.org/u/jebej)\
**Post date:** [November 16, 2020, 7:17pm UTC](https://discourse.julialang.org/t/do-we-have-something-like-this/50161/3 "2020-11-16T19:17:20Z")

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It seems also interesting to use PGO in order to optimize the LLVM part of the compiler, no? It appears pretty straightforward to do, according to the first part in the link.