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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 17 Oct 2019
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      Replying to @slightlylate @matthewcp and

      Indeed, @gatsbyjs is in a perfect position to audit first-party JS at build time and provide better options. Resource budgets are something they can enforce like almost no blog tool before them because they're flattening everything. ...and yet...

      1 reply 0 retweets 5 likes
    2. Matthew Phillips‏ @matthewcp 17 Oct 2019
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      Replying to @slightlylate @justinfagnani and

      I think this is a bit optimistic; this is a fundamental flaw of SPAs. Every new component you add degrades perf. You are punished for being DRY. It's not any 1 thing, it's death by a thousand cuts. I don't think you can back-port perf into a fundamentally broken architecture.

      1 reply 0 retweets 1 like
    3. Alex Russell‏ @slightlylate 17 Oct 2019
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      Replying to @matthewcp @justinfagnani and

      I'm abt Portals to remove the presumption we need heavyweight JS for in-app navigation effects. Putting that to the side...I'm still struggling with this argument. @gatsbyjs: 1.) advertises speed 2.) is heavily used for static sites like blogs: https://www.gatsbyjs.org/showcase/ 

      1 reply 0 retweets 1 like
    4. Alex Russell‏ @slightlylate 17 Oct 2019
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      Replying to @slightlylate @matthewcp and

      Let's peruse the "featured" part of the @gatsbyjs showcase page: https://www.gatsbyjs.org/showcase/?filters%5B0%5D=Featured …

      1 reply 0 retweets 0 likes
    5. Alex Russell‏ @slightlylate 17 Oct 2019
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      Replying to @slightlylate @matthewcp and

      You *could*, of course, build a mail client or calendaring app or collaborative editor in Gatsby, but none of these sites are that. Zero of them. And it's not what Gatsby's pitched at.

      1 reply 0 retweets 1 like
    6. Alex Russell‏ @slightlylate 17 Oct 2019
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      Replying to @slightlylate @matthewcp and

      I can't post traces of most of 'em, but this one is a govt site an I have recently been an EU taxpayer, so I feel fine posting a trace: https://2017.stateofeuropeantech.com  "2017" in URL makes me suspect that it's likely on an old Gatsby which hasn't gotten all the new perf goodies.

      1 reply 0 retweets 0 likes
    7. Alex Russell‏ @slightlylate 17 Oct 2019
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      Replying to @slightlylate @matthewcp and

      (while I wait for the trace to come back, I should note that I'm tracing many of these rn, and none of them have come back anywhere *near* OK, not even on a simulated 4G link; @gatsbyjs's featured sites are a performance superfund site)

      1 reply 0 retweets 2 likes
    8. Alex Russell‏ @slightlylate 17 Oct 2019
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      Replying to @slightlylate @matthewcp and

      Actually, looking closer, it seems to *not* be a public-sector site, so I can't post trace = ( Looking for a representatitve Gatsby public-sector page now.

      1 reply 0 retweets 0 likes
    9. Alex Russell‏ @slightlylate 17 Oct 2019
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      Replying to @slightlylate @matthewcp and

      Ok, this appears to be Gatsby: https://revenuedata.doi.gov  Per blog post here: https://revenuedata.doi.gov/blog/homepage-revamp-part-two/ …

      3 replies 0 retweets 1 like
    10. WestbrookJ‏ @WestbrookJ 17 Oct 2019
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      Replying to @slightlylate @matthewcp and

      Wait, what's the 3.5MB of page-data.json?

      1 reply 0 retweets 1 like
      Alex Russell‏ @slightlylate 17 Oct 2019
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      Replying to @WestbrookJ @matthewcp and

      That appears to be de-normalized JSON of all the data they eventually dump into a chart. But on it's own, it doesn't delay TTI because evaling even that much JSON shouldn't block main thread if you do it async with `await fetch(...).body.json()`

      2:33 PM - 17 Oct 2019
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        1. WestbrookJ‏ @WestbrookJ 17 Oct 2019
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          Replying to @slightlylate @matthewcp and

          Good to know.

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