On Friday, August 23, 2019 at 9:37:12 AM UTC+2, Simon Sapin wrote: > On 23/08/2019 04:00, Mike Hommey wrote: > > I had a similar experience on a 36-core machine earlier today. It seems > > incremental is not working properly for the style crate: incremental is > > supposed to have the same effect as sccache, but it still takes a long > > time to compile style. I'm told mw is going to look into this in the > > coming weeks. > > I don’t know how much it has evolved since, but the initial versions of > incremental compilation in rustc only cached code generation in LLVM. > Type checking, trait resolution, etc. was still done every time rustc > was invoked for a crate. > > -- > Simon Sapin
With recent versions of `rustc`, incremental compilation caches pretty much everything after parsing and macro expansion. However, the style crate in particular has proven to be rather resistant to our incremental compilation approach so far. I will indeed spend quite a bit of time investigating this over the next few months. _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
