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Harmony await optimization |
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Issue descriptionFeature description: This change is supposed to reflect a recent Normative change in the spec, reducing the number of ticks "await" takes on the microtask queue from 3 to 1. Eng owner: mslekova@chromium.org Product owner: hablich@chromium.org Design doc: https://docs.google.com/document/d/1kL08cz4lR6gO5b2FATNK3QAfS8t-6K6kdk88U-n8tug/edit Are you planning on experimenting before launch? Yes Any new strings? No Any implications for Google webservices (i.e. sync, translate)? No Binary size? No change Do the existing perf tests exercise all aspects of your new feature(s)? Yes Note: This bug is a copy of https://bugs.chromium.org/p/v8/issues/detail?id=8267 used for referencing in the finch experiment config.
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Oct 9
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Oct 9
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Oct 16
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/4bbfdb7f7387670c9e7ce4bbccdbe616d738e44b commit 4bbfdb7f7387670c9e7ce4bbccdbe616d738e44b Author: Maya Lekova <mslekova@chromium.org> Date: Tue Oct 16 08:15:03 2018 [async-await] Ship await optimization behind a flag This adds both finch and about:flags flag. Intent to ship discussions: https://groups.google.com/forum/#!topic/v8-users/ML7gOgK8Dsg https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/74QxqINq4g0 Bug: v8:8267 , chromium:893469 Change-Id: Ib5a84519d48b9b82604875ff269f0e04977914d5 Reviewed-on: https://chromium-review.googlesource.com/c/1268200 Commit-Queue: Maya Lekova <mslekova@chromium.org> Reviewed-by: Jochen Eisinger <jochen@chromium.org> Reviewed-by: Michael Hablich <hablich@chromium.org> Reviewed-by: Kentaro Hara <haraken@chromium.org> Cr-Commit-Position: refs/heads/master@{#599909} [modify] https://crrev.com/4bbfdb7f7387670c9e7ce4bbccdbe616d738e44b/chrome/browser/about_flags.cc [modify] https://crrev.com/4bbfdb7f7387670c9e7ce4bbccdbe616d738e44b/chrome/browser/flag_descriptions.cc [modify] https://crrev.com/4bbfdb7f7387670c9e7ce4bbccdbe616d738e44b/chrome/browser/flag_descriptions.h [modify] https://crrev.com/4bbfdb7f7387670c9e7ce4bbccdbe616d738e44b/content/public/common/content_features.cc [modify] https://crrev.com/4bbfdb7f7387670c9e7ce4bbccdbe616d738e44b/content/public/common/content_features.h [modify] https://crrev.com/4bbfdb7f7387670c9e7ce4bbccdbe616d738e44b/content/renderer/render_process_impl.cc [modify] https://crrev.com/4bbfdb7f7387670c9e7ce4bbccdbe616d738e44b/tools/metrics/histograms/enums.xml
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Both the server and the client side of the config are submitted. |
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Comment 1 by mslekova@chromium.org
, Oct 9