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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 29 Aug 2019
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      Alex Russell Retweeted

      "Expertise" === "nuanced understanding" E.g.: Lighthouse has major throttling challenges today, and that to get a real understanding of real-world perf, must run on actual hardware target... ...which is why http://webpagetest.org/easy  is your friend https://twitter.com/aweary/status/1166805797231153153 …

      Alex Russell added,

      This Tweet is unavailable.
      6 replies 12 retweets 75 likes
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    2. Alex Russell‏ @slightlylate 29 Aug 2019
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      Unless someone sends me a http://webpagtest.org/easy  trace, I don't trust their LH score. Today, there's no substitute for high-quality link conditioning (e.g. dummynet) and physical hardware. DevTools "throttling" isn't great. And that's *before* we discuss of budgets...

      2 replies 0 retweets 16 likes
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    3. Alex Russell‏ @slightlylate 29 Aug 2019
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      Performance experts don't warn teams away from heavyweight tools because they're impossible to make fast; they warn them away because the amount of discipline required to keep experiences good through development & iteration scales non-linearly as a result of high base cost.

      2 replies 7 retweets 18 likes
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    4. Alex Russell‏ @slightlylate 29 Aug 2019
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      Performance experts will also start by asking questions about your baseline scenario -- who are your customers? In which market? What's their demographic and location? -- to avoid giving you bad advice.

      1 reply 0 retweets 7 likes
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      Alex Russell‏ @slightlylate 29 Aug 2019
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      So can you afford Framework X? Maybe! It's *always* "maybe". Always. And, often, "maybe" == "not given the maturity level of your organisation"

      10:59 AM - 29 Aug 2019
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      • Michael Hood Jordan Nielson Amelia Bellamy-Royds Mark Meeker Simeon.__proto__ alexparish Andy Davies deserat Joyce Park
      2 replies 1 retweet 10 likes
        1. New conversation
        2. Alex Russell‏ @slightlylate 29 Aug 2019
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          Nuance strikes again! There are multiple ways to attack this. You can retool and ensure that your baseline choices are cheaper, allowing you to afford more. But that level of caution only gets teams so far. More often than not, the big fixes are at the management level.

          2 replies 0 retweets 4 likes
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        3. Alex Russell‏ @slightlylate 29 Aug 2019
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          There's a reason I give PMs and managers slow phones. Those are the people who need to be convinced that performance matters, not (usually) the engineers. When management minds change, so does team practice and culture.

          1 reply 2 retweets 21 likes
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        4. Alex Russell‏ @slightlylate 29 Aug 2019
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          It's super difficult for individual engineers and designers to advocate effectively for users without org support. Making space for that is the big challenge in most teams. Nobody wants to do a bad job, and the definition of "good" is not set individually.

          1 reply 1 retweet 16 likes
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        5. Alex Russell‏ @slightlylate 29 Aug 2019
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          These are complex interactions! Tools like Lighthouse provide _visibility_ to what was previously invisible. But they are not talismans. Saying "X gets 100 on LH" is specifically meaningful, but only when quantified (which hardware? which test environment? where in the network?)

          1 reply 3 retweets 6 likes
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        6. Alex Russell‏ @slightlylate 29 Aug 2019
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          And, as a statement about success over time, "X gets 100 on LH" is functionally meaningless. The important question is: in projects where X is involved, what's the probability of a good LH score over the project's lifespan (again, situated in network/device/topology).

          2 replies 0 retweets 7 likes
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        7. Alex Russell‏ @slightlylate 29 Aug 2019
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          Many a disappointed partner team has enthusiastically told me about their super-fast starting-point. Then we put the real site on the bench, with real hardware, with real link conditioning. Turns out, point-in-time visibility isn't worth very much if you don't keep looking.

          1 reply 0 retweets 8 likes
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        8. End of conversation
        1. David Schontzler‏ @schontz 29 Aug 2019
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          Replying to @slightlylate

          Then just bundle Framework X with the browser and all of our problems will be solved! #jqueryFtw #notMyProblem #blameTheBrowser

          0 replies 0 retweets 0 likes
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