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slightlylate's profile
Alex Russell
Alex Russell
Alex Russell
@slightlylate

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Alex Russell

@slightlylate

Chrome Project 🐡 & Web Standards TL; Blink API OWNER Named PWAs w/ @phae; probably making her ☕ DMs open. Tweets my own; press@google.com for official comms.

San Francisco, The Internet
infrequently.org
Joined December 2010

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    1. Alex Russell‏ @slightlylate 9 Apr 2019
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      Alex Russell Retweeted Mathias Bynens

      For big apps, this is a serious advantage to Service Workers and PWAs.https://twitter.com/mathias/status/1115525813670227968 …

      Alex Russell added,

      Mathias BynensVerified account @mathias
      In Chrome, any JavaScript files in a service worker cache are bytecode-cached automatically. This means there is 0 parse + compile cost for them on repeat visits. 🤯 https://v8.dev/blog/code-caching-for-devs#use-service-worker-caches …
      Show this thread
      3 replies 17 retweets 77 likes
    2. Andrea Giammarchi‏ @WebReflection 10 Apr 2019
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      Replying to @slightlylate @matteocollina

      I have one question though: why there's no way to serve pre-bytecode-optimized content to a browser able to spend 0 digesting, and executing it? This looks like a missed opportunity, and WASM is not an answer, 'cause it would require a js-compiling-to-wasm in user land w/out TS.

      1 reply 0 retweets 3 likes
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    4. Andrea Giammarchi‏ @WebReflection 10 Apr 2019
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      No, that's the "missed opportunity" part <script type="bytecode" src="v8.bc"></script> <script type="bytecode" src="sm.bc"></script> <script type="bytecode" src="jsc.bc"></script> <script nobytecode type="module" src="esm.js"></script> <script nomodule src="es5.js"></script> 🌈

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    6. Andrea Giammarchi‏ @WebReflection 10 Apr 2019
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      they've the same issue if the browser updates from a version to another (not necessarily consecutive) and the SW cache stored the old byte code version ... I guess this is an issue for them regardless, so probably they've solved it already. However, using v8:5.7 as engine is OK?

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    8. Andrea Giammarchi‏ @WebReflection 10 Apr 2019
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      Fair enough, so how do we move from my idea to one that doesn't suffer this? i.e. how do we tell v8 to perform those optimizations right away from any site if the file is served as cached? Unless that happens already, so that basically everything I'm saying cn be trashed 🎉

      1 reply 0 retweets 0 likes
      Alex Russell‏ @slightlylate 10 Apr 2019
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      Replying to @WebReflection @matteocollina

      Facebook has been proposing a binary AST format; there's some discussion about how much faster it can be than top-level parsing, and everyone is getting data on that right now. First run will always require validation and some compilation.

      6:51 AM - 10 Apr 2019
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      • Andrea Giammarchi
      2 replies 0 retweets 1 like
        1. Ingvar Stepanyan‏ @RReverser 10 Apr 2019
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          Replying to @slightlylate @WebReflection @matteocollina

          Yes, BinaryAST experiment is being actively worked on (by Mozilla, Facebook, Bloomberg and us Cloudflare).

          0 replies 0 retweets 2 likes
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        1. Toon Verwaest‏ @tverwaes 10 Apr 2019
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          Replying to @slightlylate @WebReflection @matteocollina

          Very unlikely it will make a large difference ;-)

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