1867605 - Record real time and durations when exporting js traces to profiler frontend

Status: RESOLVED FIXED

(DevTools :: General, enhancement)

Description

[Alexandre Poirot [:ochameau]]

Bug 1867599 will land a first implementation where each frame is recorded as a 1ms sample, without any other notion of time or duration.
So that each frame is displayed right after each others and are all displayed as lasting for 1ms.

Comment 1

[Alexandre Poirot [:ochameau]]

Attachment: Bug 1867605 - [devtools] Record actual frame durations in JS tracer profiler data.

Comment 2

[Alexandre Poirot [:ochameau]]

Attachment: Bug 1867605 - [devtools] Use label frame to highlight DOM Events.

Insert a fake "label" frame to highlight why JavaScript run and label them with the related DOM event being processed.

Comment 3

[Alexandre Poirot [:ochameau]]

Attachment: Bug 1867605 - [devtools] Expose the profiler output for the tracer.

Now that the tracer output generates valid data, we can expose this feature by default.

Comment 4

[Alexandre Poirot [:ochameau]]

Attachment: Bug 1867605 - [devtools] Try to show DOM Mutation in stack chart.

This records a fake "UserTiming" marker, which are optionaly shown in the marker chart.
But given that DOM Mutations don't have a duration, they are barely visible, and can't be hovered.

Comment 5

[Alexandre Poirot [:ochameau]]

Attachment: Bug 1867605 - [devtools] Use new "DOMMutation" marker type (instead of UserTiming)

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/c6227883e96f
[devtools] Record actual frame durations in JS tracer profiler data. r=canaltinova,devtools-reviewers,nchevobbe
https://hg.mozilla.org/integration/autoland/rev/8b4526f5a986
[devtools] Use label frame to highlight DOM Events. r=canaltinova,devtools-reviewers,nchevobbe
https://hg.mozilla.org/integration/autoland/rev/fc1900aa9cde
[devtools] Expose the profiler output for the tracer. r=devtools-reviewers,nchevobbe

Comment 7

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/c6227883e96f
https://hg.mozilla.org/mozilla-central/rev/8b4526f5a986
https://hg.mozilla.org/mozilla-central/rev/fc1900aa9cde

Comment 8

[Phabricator Automation]

Comment on attachment 9405741 [details]
Bug 1867605 - [devtools] Use new "DOMMutation" marker type (instead of UserTiming)

Revision D212718 was moved to bug 1904602. Setting attachment 9405741 [details] to obsolete.

Comment 9

[Phabricator Automation]

Comment on attachment 9405740 [details]
Bug 1867605 - [devtools] Try to show DOM Mutation in stack chart.

Revision D212717 was moved to bug 1904602. Setting attachment 9405740 [details] to obsolete.