awesome work and ditto.. how's the "score" computer? is it a composite of other metrics? more info on net+cpu throttling profiles?
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Replying to @igrigorik @slightlylate and
Its very much "work in progress". My concern is general page perf + ads + consideration for data plans on mobile.
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Replying to @donohoe @igrigorik and
All the data and calculations is public here:https://docs.google.com/spreadsheets/d/1c1zhkdvWE0WvG84TT3Czekj0N-0sRUEBKO3c0Aeflxw/edit …
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Replying to @donohoe @igrigorik and
The Score is arbitrary and imperfect: Load Time * Speed Index * Page Size. However I am also adding "Visually Complete"to this. All from WPT
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Replying to @donohoe @igrigorik and
Strongly recommend using Time To Interactive as your key metric and test using mobile hardware (Moto G4's in Dulles)
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Replying to @slightlylate @donohoe and
TTI captures a lot of the post-load jank that third parties introduce. Testing on real mobile hardware will show impact of JS.
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Replying to @slightlylate @donohoe and
This + better (more representative) 3g network emulation is now wrapped up in the defaults at: https://www.webpagetest.org/easy
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Replying to @slightlylate @igrigorik and
I'll see if I can use that via API. Separately, taking this example, what would you call out? https://www.webpagetest.org/jsonResult.php?test=170514_HV_J88 …
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Replying to @donohoe @igrigorik and
First, you're using an "emulated" mobile device; you want to run on real hardware (again, see Dulles). Next, LTE.
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Replying to @slightlylate @donohoe and
Most users in the US might have LTE, but it isn't great LTE (compared, e.g., to Japan or the UK or France or...well...civilised nations)
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Main thread here doesn't look like it gets quiet *ever*: https://www.webpagetest.org/result/170514_HV_J88/1/details/#waterfall_view_step1 …
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Replying to @slightlylate @donohoe and
late to the party.. +1 to everything Alex highlighted :)
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