Contact emailsshase...@chromium.org Explainer https://github.com/WICG/scheduling-apis/blob/main/explainers/yield-and-continuation.md
Specification Summary Provides a method for yielding control to the browser, which can be used to break up long tasks. Awaiting the promise returned by scheduler.yield() causes the current task to yield, continuing in a new browser task. This can be used to improve responsiveness issues caused by long tasks. Continuations are prioritized to mitigate performance problems of existing alternatives. Blink componentBlink>Scheduling>APIs <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EScheduling%3EAPIs> Motivation Long tasks (JavaScript) can lead to poor responsiveness by blocking the main thread from handling inputs or delaying the resulting UI update. Developers can mitigate this by decreasing task lengths, either by doing less work or by breaking up long tasks. Scheduling a continuation using current APIs typically has poor ergonomics because intuitively one wants to pause/resume the current task, not schedule a new task. It can also incur a performance penalty if arbitrary JavaScript runs between yield and continuation. scheduler.yield() is an ergonomic API for breaking up long tasks that mitigates performance issues of existing methods. Developers can await scheduler.yield() to break up long tasks, giving the UA an opportunity to run higher priority work, e.g. input. scheduler.yield() continuations are prioritized over tasks of the same priority or similar task sources, which helps mitigate the performance penalty of yielding. Initial public proposal TAG review TAG review statusPending Risks Interoperability and Compatibility *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? Debuggability Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ?No Flag name Requires code in //chrome?False Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=979020 Estimated milestones No milestones specified Link to entry on the Chrome Platform Status https://chromestatus.com/feature/6266249336586240 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/CAKXGoJ1SBQP-ABM3%2BsDtKzUZiPoSCWqW2mLOjMrUfFBx4TomSw%40mail.gmail.com.
