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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. Alan Jeffrey‏ @asajeffrey May 16
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      Replying to @asajeffrey @samth

      This is quite different from my experience with Rust, where (at least in Servo) pretty much all stacks are mixed Rust/C/C++, and quite a lot are mixed Rust/C/C++/JS.

      1 reply 0 retweets 0 likes
    2. Sam Tobin-Hochstadt‏ @samth May 16
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      Replying to @asajeffrey

      Is that because Servo is a mix of existing components and new ones?

      3 replies 0 retweets 0 likes
    3. Patrick Walton‏ @pcwalton May 16
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      Replying to @samth @asajeffrey

      A lot of Rust apps look like this; e.g. here’s a Pathfinder profile I had open. In the case of Pathfinder it’s because there’s no way to access the GPU without going through the Objective-C Metal library which assumes big stacks.pic.twitter.com/3sEgr6f8tK

      3 replies 1 retweet 5 likes
    4. Alan Jeffrey‏ @asajeffrey May 16
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      Replying to @pcwalton @samth

      I wonder how Java avoids this for client apps? I'd expect native UI libraries to be a source of mixed stacks. Perhaps the common case is one UI thread that ends up pinned, but the other threads are unpinned?

      1 reply 0 retweets 0 likes
    5. Patrick Walton‏ @pcwalton May 16
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      Replying to @asajeffrey @samth

      I think people just don’t write M:N UI apps in Java

      1 reply 0 retweets 1 like
    6. Alan Jeffrey‏ @asajeffrey May 16
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      Replying to @pcwalton @samth

      Thinks... Er, Eclipse maybe?

      1 reply 0 retweets 0 likes
    7. Patrick Walton‏ @pcwalton May 16
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      Replying to @asajeffrey @samth

      $10 says Eclipse is 1:1

      2 replies 0 retweets 0 likes
    8. Patrick Walton‏ @pcwalton May 16
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      Replying to @pcwalton @asajeffrey @samth

      M:N is usually for servers. There isn’t much benefit for desktop/mobile apps where the number of threads is small.

      1 reply 0 retweets 0 likes
    9. Patrick Walton‏ @pcwalton May 16
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      Replying to @pcwalton @asajeffrey @samth

      (By “small” I mean fewer than 10,000)

      1 reply 0 retweets 0 likes
    10. Sam Tobin-Hochstadt‏ @samth May 16
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      Replying to @pcwalton @asajeffrey

      Isn't 10k already expensive on Windows?

      2 replies 0 retweets 0 likes
      Patrick Walton‏ @pcwalton May 16
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      Replying to @samth @asajeffrey

      Possibly, yeah. I’m just referencing the “C10K problem” historically motivating async I/O

      11:57 AM - 16 May 2020
      0 replies 0 retweets 0 likes

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