1625325 - Telemetry to measure child process lifetime

Status: RESOLVED FIXED

(GeckoView Graveyard :: Sandboxing, task, P1)

Description

[(No longer employed by Mozilla) Aaron Klotz]

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)

Comment 1

[(No longer employed by Mozilla) Aaron Klotz]

Attachment: Data Review Request

Comment 2

[Chris H-C :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+

Comment 3

[(No longer employed by Mozilla) Aaron Klotz]

Attachment: Bug 1625325: Part 1 - Add telemetry timer to record GeckoView content process lifetimes; r=#geckoview-reviewers

Comment 4

[(No longer employed by Mozilla) Aaron Klotz]

Attachment: Bug 1625325: Part 2 - Histogram definitions for GV_CONTENT_PROCESS_LIFETIME_MS; r=chutten,dexter,janerik

Depends on D76378

Comment 5

[Pulsebot]

Pushed by [e-mail]:
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

Comment 6

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/b6d5e3893d6a
https://hg.mozilla.org/mozilla-central/rev/385bf13378f5

Comment 7

[Chris Peterson [:cpeterson]]

Moving content process bugs to the new GeckoView::Sandboxing component.