Closed Bug 1625325 Opened 10 months ago Closed 8 months ago

Telemetry to measure child process lifetime

Categories

(GeckoView :: General, task, P1)

Unspecified
Android

Tracking

(firefox78 fixed)

RESOLVED FIXED
mozilla78
Tracking Status
firefox78 --- fixed

People

(Reporter: aklotz, Assigned: aklotz)

References

(Blocks 1 open bug)

Details

(Whiteboard: [geckoview:m78])

Attachments

(3 files)

Per Agi in https://phabricator.services.mozilla.com/D68419#inline-405634:

I would want telemetry to verify that we're not spawning lots of processes that immediately die (can happen in a follow up bug)

Whiteboard: [geckoview:m77]
Assignee: nobody → aklotz
Priority: P1 → P2
Whiteboard: [geckoview:m77] → [geckoview:m78]
Depends on: 1637082
No longer depends on: 1637082
Attached file Data Review Request
Attachment #9149188 - Flags: data-review?(chutten)
Comment on attachment 9149188 [details]
Data Review 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 and Glean so is documented in its definitions file [Histograms.json](https://hg.mozilla.org/mozilla-central/file/tip/toolkit/components/telemetry/Histograms.json) and the [Probe Dictionary](https://telemetry.mozilla.org/probe-dictionary/) as well as in [metrics.yaml](https://searchfox.org/mozilla-central/source/toolkit/components/telemetry/geckoview/streaming/metrics.yaml) and the [engine-gecko data docs](https://github.com/mozilla-mobile/android-components/blob/master/components/browser/engine-gecko-nightly/docs/metrics.md).

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

Yes. This collection is 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, :aklotz is responsible.

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

Category 1, Technical.

    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 #9149188 - Flags: data-review?(chutten) → data-review+
Pushed by aklotz@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/b6d5e3893d6a
Part 1 - Add telemetry timer to record GeckoView content process lifetimes; r=geckoview-reviewers,agi
https://hg.mozilla.org/integration/autoland/rev/385bf13378f5
Part 2 - Histogram definitions for GV_CONTENT_PROCESS_LIFETIME_MS; r=Dexter
Status: NEW → RESOLVED
Closed: 8 months ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla78
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