this post was submitted on 02 Oct 2023
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Progress Report #26: rustc_codegen_gcc can now compile Rust for Linux! (blog.antoyo.xyz)
submitted 1 year ago by antoyo to c/rust
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We just accomplished two big milestones:

  • We can now compile Rust for Linux without any patches to cg_gcc.
  • We can compile, run and pass all the tests from the most popular crates. This is huge!
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[–] antoyo 2 points 1 year ago (1 children)

Do you mean the performance of the tests themselves? If so, how would you suggest that I measure this? By just comparing the execution time?

[–] robinm 2 points 1 year ago (1 children)

Yes exacly. And I assume that the test suite of all of those project are long enough to average the usual jitter of wall time mesurement.

What I'm hoping to see is if rust+llvm vs rustc+gcc binary speed are within a few percents or if there is a real difference between the two (I'm expected that we eventually reach the former once thinLTO and other optimisations are implemented).

And while doing so it could also be possible to measure the difference in max RSS.

[–] antoyo 3 points 1 year ago

Good. I'll attempt to do that for the next update.