LGTM to experiment. One of the concerns is that 2 milestones may be too short of a duration for other partners to try this out.
So my approval extends to the standard 6 milestones (136 to 131 inclusive) and I encourage you to use more than 2 of those to gather data. I also encourage you to roll out the change via finch when you decide to ship. Thanks, Vlad On Wednesday, March 19, 2025 at 9:46:36 AM UTC-4 Stephen Chenney wrote: > On Wed, Mar 19, 2025 at 3:33 AM TAMURA, Kent <tk...@chromium.org> wrote: > >> >> >> On Wed, Mar 19, 2025 at 11:47 AM Vladimir Levin <vmp...@chromium.org> >> wrote: >> >>> I'm curious why you decided to do an origin trial instead of a more >>> typical finch roll out + monitoring metrics for performance regressions. >>> Origin trial data would limit us to the feedback of registered partners, >>> which may not be a good representation of usage "in the wild". >>> >>> Separately, are you working with partners that are interested in >>> registering for this already? I note that the request is for 2 milestones, >>> which may be short if you don't already have partners lined up. >>> >> >> Yes, I already have a partner, and the partner asked us to set up an >> origin trial. They want to run A/B testing in their application to check >> performance differences. >> > > Would you then go with a Finch controlled general A/B test in M-138 or > M-139? Are metrics in place to start getting baseline performance data? > > >> >> >>> >>> Thanks, >>> Vlad >>> >>> On Tuesday, March 18, 2025 at 8:32:23 PM UTC-4 Kent Tamura wrote: >>> >>>> Contact emailstk...@chromium.org >>>> >>>> Explainer >>>> https://docs.google.com/document/d/1UbHuoflNyLbSavpH86HEmXFGyz2V4uZ6cjNpuuwrtBg/edit?usp=sharing >>>> >>>> SpecificationNone >>>> >>>> Summary >>>> >>>> *This is not a web-exposed change.* The implementation of >>>> CanvasRenderingContext2D's measureText(), fillText(), and strokeText() has >>>> a drastic change. This might affect performance, so we'd like to run an >>>> origin trial so canvas-heavy applications can try out the new >>>> implementation. >>>> >>>> >>>> Blink componentBlink>Canvas >>>> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECanvas%22> >>>> >>>> Search tagscanvas <https://chromestatus.com/features#tags:canvas> >>>> >>>> TAG reviewNone >>>> >>>> TAG review statusNot applicable >>>> >>>> Risks >>>> >>>> >>>> Interoperability and Compatibility >>>> >>>> The feature might change performance characteristic, and might have >>>> performance regressions in some cases. >>>> >>>> >>>> *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 experimentation >>>> >>>> >>>> >>>> Ongoing technical constraints >>>> >>>> None. >>>> >>>> >>>> Debuggability >>>> >>>> None >>>> >>>> >>>> Will this feature be supported on all six Blink platforms (Windows, >>>> Mac, Linux, ChromeOS, Android, and Android WebView)?No >>>> >>>> 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 about://flagsNone >>>> >>>> Finch feature nameCanvasTextNg >>>> >>>> Requires code in //chrome?False >>>> >>>> Tracking bughttps://issues.chromium.org/issues/389726691 >>>> >>>> Estimated milestones >>>> Origin trial desktop first 136 >>>> Origin trial desktop last 138 >>>> Origin trial Android first 136 >>>> Origin trial Android last 138 >>>> Origin trial WebView first 136 >>>> Origin trial WebView last 138 >>>> >>>> Link to entry on the Chrome Platform Status >>>> https://chromestatus.com/feature/5123274645962752?gate=5123363732979712 >>>> >>>> This intent message was generated by Chrome Platform Status >>>> <https://chromestatus.com/>. >>>> >>>> >>>> -- >>>> TAMURA Kent >>>> Software Engineer, Google >>>> >>>> >>>> >>>> >>>> >>>> >> >> -- >> TAMURA Kent >> Software Engineer, Google >> >> >> -- >> 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/CAGH7WqG2J%3DJ%3D7Js28%2BwuzRHhjA-qHZ5%3DXYkZMGHDmZ-xoK2XTQ%40mail.gmail.com >> >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAGH7WqG2J%3DJ%3D7Js28%2BwuzRHhjA-qHZ5%3DXYkZMGHDmZ-xoK2XTQ%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 visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/a1669ac1-fd97-42ad-9b6d-dae7fa03bdb5n%40chromium.org.
