Closed Bug 1867599 Opened 5 months ago Closed 5 months ago

Land a first minimal implementation of JS Tracer export to gecko profiler

Categories

(DevTools :: General, enhancement)

Product:
DevTools
Component:
General
Type:
enhancement

Tracking

(firefox122 fixed)

Status:
RESOLVED FIXED
Milestone:
122 Branch
Tracking Flags:
Tracking Status
firefox122 --- fixed

People

(Reporter: ochameau, Assigned: canova)

References

(Blocks 2 open bugs)

Details

Attachments

(1 file)

Bug 1867599 - Add profiler logging method to JS tracer
48 bytes, text/x-phabricator-request
Details | Review

This first implementation won't be exposed in the UI, you would need to manually toggle:

  • devtools.debugger.features.javascript-tracing to true to enable the tracer
  • devtools.debugger.javascript-tracing-log-method to "profiler" to enable the profiler output

This will be exposed once a few additional tweaks are landed, especially real durations.
The current implementation record one sample for each frame and there is no notion of time in the record. Each frame follow the previously recorded one.

Depends on: 1867603
Blocks: 1867605
Assignee: nobody → canaltinova
Status: NEW → ASSIGNED
Pushed by apoirot@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/ac7f61665843
Add profiler logging method to JS tracer r=devtools-reviewers,nchevobbe

https://hg.mozilla.org/mozilla-central/rev/ac7f61665843

Status: ASSIGNED → RESOLVED
Closed: 5 months ago
status-firefox122: --- → fixed
Resolution: --- → FIXED
Target Milestone: --- → 122 Branch
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