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pcwalton's profile
Patrick Walton
Patrick Walton
Patrick Walton
@pcwalton

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Patrick Walton

@pcwalton

Research engineer at Mozilla

San Francisco, CA
pcwalton.github.io
Joined November 2009

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    1. Graydon Hoare‏ @graydon_pub 22 Apr 2019
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      Replying to @ManishEarth @stephentyrone

      I mean I'm nowhere near the purse strings but this has literally been an issue off-and-on since I .. uh .. left the project. We were having an argument over it that very week. It means prioritizing cycle time in a way that seems to resist all rational planning. I don't get it.

      1 reply 0 retweets 4 likes
    2. Graydon Hoare‏ @graydon_pub 22 Apr 2019
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      Replying to @graydon_pub @ManishEarth @stephentyrone

      Like if someone with the correct authority said "we don't do any more feature work or bug fixing or anything until cycle time is down to 10 minutes", it would get solved. It's not like compilers that bootstrap and self-test that fast (without $infinite_aws_bill) can't be written.

      2 replies 0 retweets 10 likes
    3. Patrick Walton‏ @pcwalton 22 Apr 2019
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      Replying to @graydon_pub @ManishEarth @stephentyrone

      I’m fine with investing in automatic rollups (the fact that we have to do them bugs me too), but you lost me at “stop all feature/bug fix work until the compiler is 10x faster”.

      1 reply 0 retweets 3 likes
    4. Patrick Walton‏ @pcwalton 22 Apr 2019
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      Replying to @pcwalton @graydon_pub and

      I’m not even convinced it’s possible for Rust to compile that fast without simplifying the language a lot. Even if it were, you’re talking about a complete rewrite of major subsystems. Like either “rewrite the whole typechecker” or “rewrite LLVM”.

      2 replies 0 retweets 8 likes
    5. Graydon Hoare‏ @graydon_pub 22 Apr 2019
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      Replying to @pcwalton @ManishEarth @stephentyrone

      The whole compiler has been substantially rewritten multiple times since you and I last had this argument in person, so .. I kinda don't buy that. It's chronic under-prioritization of the topic, not "we can't possibly find the time".

      2 replies 0 retweets 4 likes
    6. Graydon Hoare‏ @graydon_pub 22 Apr 2019
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      Replying to @graydon_pub @pcwalton and

      (And maybe that under-prioritization was the right choice at the time, idk. Counterfactuals all the way down. I do know that every time it comes up -- in nearly every project I've worked on -- there's always a reason why we can't or shouldn't; lots more than other areas.)

      1 reply 0 retweets 1 like
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    8. Patrick Walton‏ @pcwalton 22 Apr 2019
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      Replying to @sayrer @graydon_pub and

      Again, strongly disagree. Bazel focuses on the big company workflow. Cargo focuses on the open source workflow. It would have been a mistake to try to serve big companies first without focusing on package management/code sharing.

      1 reply 0 retweets 2 likes
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    10. Patrick Walton‏ @pcwalton 22 Apr 2019
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      Replying to @sayrer @graydon_pub and

      I’m not talking about big companies vs. small companies. I’m talking about companies vs. the open source ecosystem. How many large open source projects use Bazel? Not even Chromium does!

      1 reply 0 retweets 0 likes
      Patrick Walton‏ @pcwalton 22 Apr 2019
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      Replying to @pcwalton @sayrer and

      (And one of the reasons why Bazel is not used by Chromium is a lack of emphasis on Windows support, which again goes back to the open source ecosystem vs. companies.)

      7:02 PM - 22 Apr 2019
      1 reply 0 retweets 0 likes
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        2. Patrick Walton‏ @pcwalton 22 Apr 2019
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          Replying to @sayrer @graydon_pub and

          Explain how Cargo does not have reproducible builds. Look, if Rust had said “we’re not going to provide a package manager, just use Bazel” the language probably would have died.

          1 reply 0 retweets 4 likes
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