Just to clarify: this ran as an OT from 115 to 117, and has been
disabled since then?
And you're requesting to run another OT (vs extending a currently active
one) from 129 to 131.
Do I have that correct?
On 7/22/24 5:56 AM, 'Marja Hölttä' via blink-dev wrote:
Contact emails
[email protected], [email protected]
Explainer
https://github.com/explainers-by-googlers/explicit-javascript-compile-hints-file-based/blob/main/README.md
Specification
None
Summary
Allow attaching information about which functions should be eager
parsed & compiled in JavaScript files. The information will be encoded
as magic comments. We'll first target launching the file-based
explicit compile hints, and as a follow up, investigate selecting
individual functions for eager compilation.
Blink component
Blink>JavaScript
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EJavaScript>
TAG review
TAG review status
Pending
Chromium Trial Name
JavaScriptCompileHintsMagic
Link to origin trial feedback summary
https://google.qualtrics.com/jfe/form/SV_9SLyOGnTj2cwo0C
Origin Trial documentation link
https://docs.google.com/document/d/19xTAM4A75tz0xUq_velMzGA4JHEgXpyflUxXTcuNiyE/edit?usp=sharing
Risks
Interoperability and Compatibility
No interoperability / compatibility risks. Other browsers are likely
to ignore the hints if they perceive they cannot benefit from them.
Ignoring the hint is allowed behavior. We plan to make the hints
generic though, so that other browsers can later start to support them
too, e.g., if they implement background parsing / compilation.
/Gecko/: N/A (https://github.com/mozilla/standards-positions/issues/780)
/WebKit/: N/A (https://github.com/WebKit/standards-positions/issues/172)
/Web developers/: Positive Positive signals from partners who want to
use compile hints to eager-compile core JS files.
/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?
Goals for experimentation
We'd like to measure the performance of the improved feature
implementation in userland partner metrics.
Reason this experiment is being extended
The origin trial configuration for this feature was broken in
M115-M116, and the users weren't able to run the experiments.
Reason this experiment is being extended
We did an origin trial in versions 115-117. We modified the feature
based on the results (performance measurements by Google Workspace)
and we'd now like to do another origin trial with the modified
feature, in versions 129-131.
Ongoing technical constraints
Debuggability
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
The feature doesn't trigger any functional changes and cannot be
tested by WPT.
Flag name on chrome://flags
Finch feature name
None
Non-finch justification
None
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/v8/issues/detail?id=13917
Estimated milestones
Origin trial desktop first 115
Origin trial desktop last 117
Origin trial extension 1 end milestone 120
Origin trial extension 2 end milestone 131
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5100466238652416?gate=5198754872819712
Links to previous Intent discussions
Intent to Experiment:
https://groups.google.com/a/chromium.org/g/blink-dev/c/BmN1Wus8V1s/m/3L2uU-wGAgAJ
Intent to Extend Experiment 1:
https://groups.google.com/a/chromium.org/g/blink-dev/c/BmN1Wus8V1s/m/rhtpXTyPCgAJ
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
--
Google Germany GmbH
Erika-Mann-Straße 33
80636 München
*
*
Geschäftsführer: Paul Manicle, Liana Sebastian.
Registergericht und -nummer: Hamburg, HRB 86891
Sitz der Gesellschaft: Hamburg
*
*
Diese E-Mail ist vertraulich. Falls sie diese fälschlicherweise
erhalten haben sollten, leiten Sie diese bitte nicht an jemand anderes
weiter, löschen Sie alle Kopien und Anhänge davon und lassen Sie mich
bitte wissen, dass die E-Mail an die falsche Person gesendet wurde.
This e-mail is confidential. If you received this communication by
mistake, please don't forward it to anyone else, please erase all
copies and attachments, and please let me know that it has gone to the
wrong person.
--
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 [email protected].
To view this discussion on the web visit
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAED6dUDumPTSOdUD%2BVOBMPappq%3DO4omLrtHXH3YqyPOLwnkS0A%40mail.gmail.com
<https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAED6dUDumPTSOdUD%2BVOBMPappq%3DO4omLrtHXH3YqyPOLwnkS0A%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 [email protected].
To view this discussion on the web visit
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/07a057bc-b7a1-4b19-86a7-2dc2ca7fb78b%40chromium.org.
