I have a bunch of ideas for how to make the Rust compiler faster.

I’m going to try them out and see what works, then write about it here.

I’ve been working on rustc performance for several months now, in my spare time. In that time, I think I’ve made some pretty good progress: the compiler is around 10% faster than it was when I started (measured by compile-time speedup), and many of the changes are already in master . But there’s still a lot more work to do!

In this post, I want to talk about where we stand today with respect to performance improvements

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