Intent to Extend Experiment: Speculative load measurement

[Yoav Weiss (@Shopify)]

Contact emails

yoav...@chromium.org, barryp...@google.com

Explainer

https://github.com/WICG/speculative_load_measurement/blob/main/README.md

Specification

No information provided

Summary

Expose measurement data regarding speculative loads (preloads, prefetches and prerenders) as part of a newly exposed `performance.getSpeculations()` method. That would enable developers to measure the efficacy of various speculative loading strategies and adapt them accordingly.

Blink component

Blink>PerformanceAPIs

Web Feature ID

Missing feature

TAG review

No information provided

TAG review status

Pending

Origin Trial Name

Speculative Load measurement

Goals for experimentation

None

Chromium Trial Name

SpeculationMeasurement

Origin Trial documentation link

https://github.com/WICG/speculative_load_measurement#speculative-load-measurement-api

WebFeature UseCounter name

kSpeculationMeasurement

Risks

Interoperability and Compatibility

No information provided

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?

No information provided

Reason this experiment is being extended

I'd like an extension for the trial for a couple of reasons: 

* Some partners are just able to start experimenting now, and their input would be valuable. 

* For most of the trial, we had a very significant bug in navigation reporting. The fix just landed in stable, so it seems worthwhile to continue the experimentation. 

Beyond that, since the milestone cadence changed mid-trial, The trial can actually run until M158 before the initial 6 months run out.

Ongoing technical constraints

No information provided

Debuggability

No information provided

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?

No

Flag name on about://flags

No information provided

Finch feature name

No information provided

Non-finch justification

No information provided

Requires code in //chrome?

False

Tracking bug

https://issues.chromium.org/issues/481590676

Estimated milestones

Origin trial desktop first	150
Origin trial desktop last	155
Origin trial extension 1 end milestone	158

Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5118840377835520?gate=5091372532105216

Links to previous Intent discussions

Intent to Prototype: https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOmohSJA9q57gnHFyJ1WqUUJi2AX5UCmtDM50URp9hjx3J4WJg%40mail.gmail.com
Intent to Experiment: https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOmohSKBXF5hKYn9Lp6AvyEnESrBSvruyCVcHVcJae-56dcYNQ%40mail.gmail.com

This intent message was generated by Chrome Platform Status.

[Chris Harrelson]

LGTM

--
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 visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOmohSLYJPRrGum3aj2kdDmPFKNsLtXJgK28DS6xOKNLkLyadQ%40mail.gmail.com.