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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. Simon Hearne‏ @simonhearne 27 Nov 2019
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      Replying to @slightlylate

      Please share!

      1 reply 0 retweets 2 likes
    2. Alex Russell‏ @slightlylate 27 Nov 2019
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      Replying to @simonhearne

      1.) `font-display: optional` 2.) Perf Budgets (e.g., via Lighthouse CI) 3.) Workers (e.g., via Comlink) 4.) CSS Custom Paint (off-thread in '20) & Animation Worklet (w/ Scroll Timeline) 5.) SW-based MPA architecture (content stitching w/ streams) 6.) 4G penetration (yes, 4G!) ...

      3 replies 2 retweets 8 likes
    3. Alex Russell‏ @slightlylate 27 Nov 2019
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      Replying to @slightlylate @simonhearne

      7.) Feature Policies for control (e.g., via Never-Slow Mode) 8.) Observability & feedback (on your list) 9.) Anaheim (Chromium-based Edge) killing polyfill bloat 10.) CSS features replacing JS libraries (no JS for, e.g., carousels) 11.) Bonus! Sequestering JS to the server-side.

      1 reply 1 retweet 1 like
    4. Alex Russell‏ @slightlylate 27 Nov 2019
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      Replying to @slightlylate @simonhearne

      Others will have impact on fewer (but more heavily used) sites, e.g., better understanding and use of Service Worker code caching optimisations. Some have played out in '19 w/ too little fanfare; notably layout for non-latin text and JS parse speed improvements.

      1 reply 0 retweets 0 likes
    5. Simon Hearne‏ @simonhearne 27 Nov 2019
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      Replying to @slightlylate

      All good points! In terms of crystal ball big shifts in web perf - SW.js, Lighthouse CI, removing polyfills, updating carousels etc. all require effort for _every_ site to improve. I wonder what % of sites changed 0 LOC in 2019.

      2 replies 0 retweets 0 likes
    6. Simon Hearne‏ @simonhearne 27 Nov 2019
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      Replying to @simonhearne @slightlylate

      Developer inertia is a big challenge with web performance, not because of lack of drive or knowledge. Companies constantly prioritise features over speed. An advantage shared by JAMstack, WASM (& workers), Edge & Web Monetisation is that they're new & shiny. Maybe = investment.

      1 reply 0 retweets 0 likes
    7. Alex Russell‏ @slightlylate 27 Nov 2019
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      Replying to @simonhearne

      Alex Russell Retweeted Rick Byers

      Shiny gets too much play as an incentive. See:https://twitter.com/RickByers/status/1199384180632764417?s=20 …

      Alex Russell added,

      Rick Byers @RickByers
      When Google Search started using speed as a (very small) ranking signal, they saw a 15%-20% improvement in perf metrics and a 20% reduction in page abandonment: https://webmasters.googleblog.com/2019/04/user-experience-improvements-with-page.html …. This is huge! One of the key studies which drives our performance strategy in Chrome.
      Show this thread
      1 reply 0 retweets 0 likes
    8. Simon Hearne‏ @simonhearne 27 Nov 2019
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      Replying to @slightlylate

      Yup and I think that might be because there is more budget for technical SEO than web perf in the average org:https://simonhearne.com/2019/2020-predictions/#4---observability …

      1 reply 0 retweets 1 like
    9. Andy Davies‏ @AndyDavies 27 Nov 2019
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      Replying to @simonhearne @slightlylate

      We need to stop treating WebPerf as a technical problem and start treating it as business problem… Until then it's always going to play second fiddle to shiny

      1 reply 2 retweets 22 likes
    10. Harry Roberts‏Verified account @csswizardry 27 Nov 2019
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      Agreed. No one cares about security/accessibility until after they’ve been hacked/sued; until it’s hit them right in the business. Because poor perf never really culminates in anything so drastic, most businesses don’t care. Ergo needs reframing from the outset.

      1 reply 0 retweets 2 likes
      Alex Russell‏ @slightlylate 27 Nov 2019
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      Replying to @csswizardry @AndyDavies @simonhearne

      I've seen perf cause drastic business failure, but like getting pwn'd, nobody talks about it because it's embarrassing. Doubly so because you do it *to yourself*. In the dysfunctional orgs, folks even get promoted for fixing se of what their (much anticipated!) launch breaks.

      1:43 PM - 27 Nov 2019
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        2. Harry Roberts‏Verified account @csswizardry 27 Nov 2019
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          Replying to @slightlylate @AndyDavies @simonhearne

          Right. But it’s never (or rather, very very rarely) big-bang failure. It’s usually a slow and painful demise.

          1 reply 0 retweets 1 like
        3. Simon Hearne‏ @simonhearne 27 Nov 2019
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          Replying to @csswizardry @slightlylate @AndyDavies

          I spoke to the CTO of a large company today (~50 brands) who knew that one of their key landing pages took 32s to load, but had never seen a waterfall chart. No one knew why it took 32s 🤯 I'm really not sure how to fix that (at scale)

          3 replies 0 retweets 3 likes
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