fdoray@ launched this trial since Nov 2023, at first canary/dev, and then beta, 1% stable. The experiments show statistically improvements to CPU time on navigation, page load time and input delay. So we are requesting to experiment on 50% stable as next step.
Actually the feature should be in origin trial stage now. But I don't have the permission to add origin trial stage. I have to use dev trial instead. Need some help from webstatus-request@ to grant me the permission. On Tuesday, February 27, 2024 at 8:53:34 AM UTC+8 mike...@chromium.org wrote: > Hello, > > To clarify: is this intended to be an I2E, or a Developer Trial? According > to https://chromestatus.com/feature/5106220399853568, it appears you are > in the dev trial stage. But you mention stable experiment below... so > perhaps that's a process mistake? > > Can you give more info on the experiment timelines and what stable > percentages you are requesting permission to experiment on? > > On 2/22/24 2:30 AM, Zheda Chen wrote: > > Contact emails > zheda...@intel.com, fdo...@chromium.org > > Specification > https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html > > Summary > > Align wake ups of JavaScript timers for unimportant cross-origin frames. > Currently, DOM timers <32ms are all opt-out from AlignWakeUps [1] due to > performance concerns. This is very conservative and actually some > unimportant frames are eligible to use JS timer alignment. WebKit uses the > policy to align DOM timer of non-interacted cross origin frames to 30ms. > This feature adds JavaScript timer wake up alignment for unimportant frames > on foreground pages. Unimportant frames means they are cross origin, > visible but have small proportion of page’s visible area, and have no user > interaction. [1] > https://chromium-review.googlesource.com/c/chromium/src/+/4589092 > > Do you have plans to specify this concept of "unimportant frames" > somewhere? > > > > Blink component > Blink>PerformanceAPIs>Timers > <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EPerformanceAPIs%3ETimers> > > TAG review > None > > TAG review status > > Not applicable > > 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 > > > Goals for experimentationWe plan to experiment on stable to confirm > whether we observe same performance improvement as on lower channels and > similar power benefit as in the lab. We will decide whether this feature > ships based on the experiment data. > > > > Ongoing technical constraints > > None > > > Debuggability > > None > > > Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, ChromeOS, 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> > ? > No > > Flag name on chrome://flags > None > > Finch feature name > ThrottleUnimportantFrameTimers > > Requires code in //chrome? > False > > Tracking bug > https://issues.chromium.org/issues/40942028 > > Estimated milestones > DevTrial on desktop > 122 > DevTrial on Android > 122 > > Link to entry on the Chrome Platform Status > https://chromestatus.com/feature/5106220399853568 > > 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+...@chromium.org. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/38855cfe-3bf3-4a04-b96a-81adaa5ba72fn%40chromium.org > > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/38855cfe-3bf3-4a04-b96a-81adaa5ba72fn%40chromium.org?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/f7793487-9d55-458e-a06a-9860c3403826n%40chromium.org.
