Neither the Lighthouse interface nor the docs tell us what the target for First Meaningful Paint is? Am I blind? https://developers.google.com/web/tools/lighthouse/audits/first-meaningful-paint …pic.twitter.com/GDfaKECwPe
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.
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Neither the Lighthouse interface nor the docs tell us what the target for First Meaningful Paint is? Am I blind? https://developers.google.com/web/tools/lighthouse/audits/first-meaningful-paint …pic.twitter.com/GDfaKECwPe
Jason Grigsby, ☁4 Retweeted Jason Grigsby, ☁4
@slightlylate @owencm Am I missing something? How do I find what ranges are recommended?https://twitter.com/grigs/status/890622421824192512 …
Jason Grigsby, ☁4 added,
Roughly <= 1.6s (https://github.com/GoogleChrome/lighthouse/blob/648cce622513fa3d1cf1b04ffb011377e2c2db29/lighthouse-core/audits/first-meaningful-paint.js#L13 …). More recent Lighthouse tries to simplify this to green=good, red=bad.
@nhoizey @patmeenan Chrome Dev Tools no longer provides detailed info on up/down and RTT for throttling presets. Where can I find them?pic.twitter.com/qwtr3u8hK2
And does Fast 3G in Chrome = Fast 3G in Lighthouse = Fast 3G in Web Page Test? Props to WPT for providing its numbers! (screenshot)pic.twitter.com/UGJldRFnuQ
Has been a long time coming to get everything lined up, but here's Chrome & WPT configs: https://cs.chromium.org/chromium/src/third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js?type=cs&q=Slow3GConditions&sq=package:chromium&l=212 … https://github.com/WPO-Foundation/webpagetest/blob/master/www/settings/connectivity.ini.sample#L61 …
Hey @paul_irish: why are these not lined up w/ 3G_EM?
Alex, are you saying that Lighthouse should be looking at 3G_EM instead of 3GFast as defined in https://github.com/WPO-Foundation/webpagetest/blob/master/www/settings/connectivity.ini.sample#L61 … ? Or that Chrome’s…
preset of Slow 3G should match up with 3G_EM in the WPO Foundation definitions? FWIW, put in the camp wishing for consistency. :)
I'd just like the defaults to all line up. I'll send CLs.
I’d love them to line up too! Ok, so for the research I’m doing, Lighthouse is looking at Fast 3G. No plans to change that soon, right?
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