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wycats's profile
Yehuda Katz 🥨
Yehuda Katz 🥨
Yehuda Katz  🥨
Verified account
@wycats

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Yehuda Katz  🥨Verified account

@wycats

Tilde Co-Founder, OSS enthusiast and world traveler.

Portland, OR
yehudakatz.com
Joined August 2007

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    1. Yehuda Katz  🥨‏Verified account @wycats 18 Dec 2017

      JavaScript code is much more expensive, byte for byte, than an image, because of the time spent parsing and compiling it. It's possible to parse and compile wasm as fast as it comes over the network, which makes it much more like an image than JavaScript code. Game changer!

      37 replies 491 retweets 1,786 likes
    2. Sasha Aickin‏ @xander76 18 Dec 2017
      Replying to @wycats

      This is indeed very cool, but in my experience so far WASM programs tend to be much bigger than equivalent JS programs, which undercuts the advantage, in some cases quite significantly.

      4 replies 0 retweets 15 likes
    3. Jay Phelps‏ @_jayphelps 18 Dec 2017
      Replying to @xander76 @wycats

      interesting! This doesn't align with my experience so I'm legit curious, is this asm.js vs wasm or handwritten JS vs wasm? What source language and compiler?

      1 reply 0 retweets 9 likes
    4. Sasha Aickin‏ @xander76 18 Dec 2017
      Replying to @_jayphelps @wycats

      handwritten JS vs Rust wasm with native Rust compiler. asm.js is always bigger than equivalent wasm in my (very limited) experience, and Emscripten programs are enormous. What have you seen? #inquiringmindswanttoknow

      2 replies 0 retweets 7 likes
    5. Yehuda Katz  🥨‏Verified account @wycats 18 Dec 2017
      Replying to @xander76 @_jayphelps

      Are you running wasm-gc against the final program? Important to keep in mind: JS is not a little more expensive than an image, it's massively more expensive. So even a 3-5x larger wasm might pay off from reduced parse and compile times. This was my point.

      3 replies 0 retweets 13 likes
      Yehuda Katz  🥨‏Verified account @wycats 18 Dec 2017
      Replying to @wycats @xander76 @_jayphelps

      I think people expect that "if the wasm is 2x bigger than the JS, game over". That is not actually true on a good wasm implementation. (note: today's v8 is not a good wasm implementation, but it will be before too long, I hope)

      5:51 PM - 18 Dec 2017
      • 5 Likes
      • Martin Mikušát Alexander Chudesnov Patrik Ragnarsson Daniel Ashcraft Lin Clark
      1 reply 0 retweets 5 likes
        1. New conversation
        2. Sasha Aickin‏ @xander76 18 Dec 2017
          Replying to @wycats @_jayphelps

          Interested: what’s bad about v8’s wasm? And do@you think there’s a good wasm engine?

          1 reply 0 retweets 1 like
        3. Yehuda Katz  🥨‏Verified account @wycats 18 Dec 2017
          Replying to @xander76 @_jayphelps

          I think FF nightly is leading the pack atm. But competitive pressure is strong and things change all the time.

          1 reply 0 retweets 9 likes
        4. Yehuda Katz  🥨‏Verified account @wycats 18 Dec 2017
          Replying to @wycats @xander76 @_jayphelps

          Firefox is focusing on compiling realtime, multi-tier and streamlining wasm->js chatty situation (very fast calls across the boundary). All of these are adding up fast for my use cases.

          1 reply 0 retweets 7 likes
        5. Sasha Aickin‏ @xander76 18 Dec 2017
          Replying to @wycats @_jayphelps

          Interesting! I’ve been running tests on calls abroad the boundary and not seeing great results from FF, but I’m not trying nightly. Something more to play with! Yay!

          0 replies 0 retweets 1 like
        6. End of conversation

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