Found this while hunting [this](https://discourse.julialang.org/t/help-building-mwe-for-1-8-latency-regression/84796). I don't know if its alot or a little of that (this stuff way above my paygrade tbh), but thought I'd report. On 1.8, using FFTW as an example of something that loads a jll: `@time_imports using Static, FFTW` vs `@time_imports using FFTW` you get: ``` 432.3 ms FFTW_jll 99.61% compilation time (100% recompilation) ``` vs ``` 1.2 ms FFTW_jll ``` Also: ```julia using SnoopCompileCore invalidations = @snoopr begin using Static, FFTW end using SnoopCompile length(uinvalidated(invalidations)) ``` is ~ 2000 invalidations,