Closed Bug 1531917 Opened 9 months ago Closed 7 months ago

Gather telemetry on effectiveness of the bfcache

Categories

(Core :: Performance, enhancement)

52 Branch
enhancement
Not set

Tracking

()

RESOLVED FIXED
mozilla68
Tracking Status
firefox68 --- fixed

People

(Reporter: jesup, Assigned: sefeng)

References

Details

(Whiteboard: [qf:p3:responsiveness])

Attachments

(3 files)

It appears most major pages (even all of Wikipedia) use unload handlers, and so are blocked from the bfcache. We want to gather telemetry on the success ratio of the bfcache in the field so we can evaluate how well it's working, track trends in the web, and see how changes affect that.

Patch to come ...

Attachment #9047851 - Flags: data-review?(chutten)
Comment on attachment 9047851 [details]
bfcache.telemetry.request

DATA COLLECTION REVIEW RESPONSE:

    Is there or will there be documentation that describes the schema for the ultimate data set available publicly, complete and accurate?

Yes. This collection is Telemetry so is documented in its definitions file and the [Probe Dictionary](https://telemetry.mozilla.org/probe-dictionary/).

    Is there a control mechanism that allows the user to turn the data collection on and off?

Yes. This collection is Telemetry so can be controlled through Firefox's Preferences.

    If the request is for permanent data collection, is there someone who will monitor the data over time?

Yes. Randell Jesup and Vicky Chin are responsible.

    Using the category system of data types on the Mozilla wiki, what collection type of data do the requested measurements fall under?

Category 2, Interaction Data.

    Is the data collection request for default-on or default-off?

Default on for all channels.

    Does the instrumentation include the addition of any new identifiers?

No.

    Is the data collection covered by the existing Firefox privacy notice?

Yes.

    Does there need to be a check-in in the future to determine whether to renew the data?

No. This collection is permanent.
---
Result: datareview+
Attachment #9047851 - Flags: data-review?(chutten) → data-review+
Whiteboard: [qf] → [qf:p3:responsiveness]
Assignee: rjesup → sefeng
Pushed by sefeng@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/e80a258b4aed
Add Telemetry for how pages use bfcache r=jesup,bdekoz,smaug
https://hg.mozilla.org/integration/autoland/rev/fd66f241a8bd
Add Telemetry for bfcache hit and miss r=bdekoz,smaug
Status: NEW → RESOLVED
Closed: 7 months ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla68
Blocks: 1551935
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