arewefastyet VS EdenSCM

That page averages all the builds across different code bases. It doesn’t specify which version/tag of which code base, nor does it talk about the hardware.

https://arewefastyet.pages.dev/ - This page tracks compile times across some common crates over all supported compiler versions, with different hardware (2, 4, 8, 16 cores). This used to be https://arewefastyet.rs but the domain expired.

https://arewefastyet.rs/ see benchmark

You can check incremental compile times on http://arewefastyet.rs. Choose one compile mode (Debug OR Release, preferably Debug), one hardware config (4 cores let's say) and both profile modes (Clean, Incremental).

Compile times in rustc have been steadily improving with time, as shown here - https://arewefastyet.rs.

Every release doesn't make every workload faster, but over a long time horizon, the effect is clear. Rust 1.34 was released in April 2019 and since then many crates have become 33-50% faster to compile, depending on the hardware and the compiler mode (clean/incremental, check/debug/release).

Interestingly, the speedup mentioned in OP won't show up in these charts because that's a change on macOS and these benchmarks were recorded on Linux.

What is expected to be a gamechanger is the release of cranelift in 2021 or 2022. It's an alternate debug backend that promises much faster debug builds.

Yes plenty of effort goes into making Rust compilation faster, see https://arewefastyet.rs/, its FAQ, and some easy internet searches.

Thanks for your work on arewefastyet.rs, I was about to post a link to it haha

I implemented something similar. Deserialising a comma separated strings into a struct - example. Hope that helps!

Kind of weird that https://github.com/facebookexperimental/eden (linked in mononoke) redirects to sapling. Does that mean it's replacing eden?

Maybe at their scale it makes more sense to switch to a VCS like Eden? https://github.com/facebookexperimental/eden

Eden's equivalent of 'git status' should run almost instantaneous, as checkouts are hosted by a virtual file system (FUSE) that tracks changes.

Meta having moved on from Mercurial may be a factually true comment, but it looks like they still have fondness for Mercurial's ways:

https://github.com/facebookexperimental/eden

> - A build system / package manager like Nix [1] but with a better user experience / more straightforward command-line tooling.

Working on it :)

> - A version control system which scales to petabytes or more. Something that I could put large video files in without thinking twice about it. Something a large company could use for their monorepo—or even their data warehouse.

https://github.com/facebookexperimental/eden

> A note-taking tool that allows me to organize notes in a graph with links between them

https://www.orgroam.com/

Eden - a cross-platform, scalable source control management system from Meta.

Eden\ (202 comments)