JuliaCon 2026

Why is compilation as slow as it is?

Compilation latency is one of top asks Julia users have and have had over the years. But why is it so hard to make significant leaps on that area. Or even keep the performance the same.
Since 1.10 there have been significant regressions in (pre)compilation time. What caused those and can we recoup or even get better than 1.10 performance?
The talk will go through why compiling Julia quickly is hard, what are we doing to improve that and what users can do to make their code compile faster.

The speaker's profile picture
Gabriel Baraldi

Compiler engineer at JuliaHub and open source enthusiast.