Contact emails nrosent...@chromium.org, shase...@chromium.org
Explainer https://github.com/w3c/long-animation-frames/blob/main/user-defined-script-entry-point-explainer.md Specification https://w3c.github.io/long-animation-frames Summary Long animation frames allow insight into main-thread bottlenecks that can result in jank and bad INP. Some of these insights are the monitoring of long "script entry points" - callbacks from the platform (event handlers/script blocks etc) that take more than 5ms. However, those "entry points" are often too coarse, and don't give enough insight about the true cause of the bottleneck This feature allows user code to define its own "entry points", and those entry points would appear as bottleneck in the LoAF API. Blink component Blink>PerformanceAPIs Motivation See https://github.com/w3c/long-animation-frames/issues/3. From the inception of long animation frames, this was the biggest pain point, where bottlenecks were often attributed to "wrappers" of frameworks and RUM libraries, not giving actionable insight about the culprit script. Initial public proposal https://github.com/w3c/long-animation-frames/blob/main/user-defined-script-entry-point-explainer.md TAG review None TAG review status Pending Risks Interoperability and Compatibility None Gecko: No signal WebKit: No signal Web developers: No signals Other signals: 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? None Debuggability None Is this feature fully tested by web-platform-tests? No Flag name on about://flags None Finch feature name None Non-finch justification None Requires code in //chrome? False Estimated milestones No milestones specified Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5204094577541120?gate=5203521979547648 This intent message was generated by Chrome Platform Status. -- 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 visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/672ca67c.2b0a0220.d9f4a.0305.GAE%40google.com.
