LGTM - excited to see people experiment with this! On Wed, May 24, 2023 at 3:06 AM Noam Rosenthal <nrosent...@chromium.org> wrote:
> Contact emailsnrosent...@chromium.org > > Explainerhttps://github.com/w3c/longtasks/blob/main/loaf-explainer.md > > Specificationhttps://github.com/w3c/longtasks/blob/main/loaf-explainer.md > > Summary > > This is a extension of long tasks. It measures the task together with its > subsequent rendering update, adding information such as long running > scripts, rendering time, and time spent in forced layout and style ("layout > thrashing"). Developers can use this as a diagnostic for "sluggishness", > which is measured by INP, by finding the causes for main-thread congestion > which is often the cause for bad INP. > > > Blink componentBlink>PerformanceAPIs > <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EPerformanceAPIs> > > TAG review > > TAG review statusPending > > Risks > > > Interoperability and Compatibility > > > > *Gecko*: Positive Not yet a formal signal but showed positive interest at > WG call. > > *WebKit*: No signal > > *Web developers*: Positive ( > https://twitter.com/jebbacca/status/1653355406368952321) Wix, Taboola, > and others have already experimented with this in Canary. Strong excitement > from several partners at We Love Speed conference. > > *Other signals*: > > Ergonomics > > It should work well with other performance timeline entries, mainly > event-timing/INP. > > > Security > > This feature exposes rendering time to iframes, which might be > cross-origin (same-process). However, this is anyway observable, by using > requestAnimationFrame. Note that everything in this feature is same-process. > > > WebView application risks > > Does this intent deprecate or change behavior of existing APIs, such that > it has potentially high risk for Android WebView-based applications? > > > > Goals for experimentation > > > > Ongoing technical constraints > > None > > > Debuggability > > > > Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, Chrome OS, Android, and Android WebView)?Yes > > Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> > ?Yes > > Flag nameLongAnimationFrameTiming > > Requires code in //chrome?False > > Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1392685 > > Launch bughttps://launch.corp.google.com/launch/4244858 > > Estimated milestones > OriginTrial desktop last 120 > OriginTrial desktop first 115 > OriginTrial Android last 120 > OriginTrial Android first 115 > OriginTrial webView last 120 > OriginTrial webView first 115 > > Link to entry on the Chrome Platform Status > https://chromestatus.com/feature/6118675067699200 > > Links to previous Intent discussionsIntent to prototype: > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJn%3DMYbX%3DEOAwkEvDQY9Ja1trSXLFtM1XNsuw1Lr2QR88%2BTnqw%40mail.gmail.com > > This intent message was generated by Chrome Platform Status > <https://chromestatus.com/>. > > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to blink-dev+unsubscr...@chromium.org. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJn%3DMYbdL3atq6FvsfrR%3DVs%2Boexvt04zfjV97BNNPL76iPTGLg%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJn%3DMYbdL3atq6FvsfrR%3DVs%2Boexvt04zfjV97BNNPL76iPTGLg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY8VYf9SAucmz51rV%2BAad84breZL90H3VNiR2vYZYGeERw%40mail.gmail.com.
