Closed Bug 1158616 Opened 10 years ago Closed 2 years ago

Attach metadata to synchronous reflow markers about which property get/set or method call triggered the synchronous reflow

Categories

(DevTools :: Performance Tools (Profiler/Timeline), defect, P3)

Product:
DevTools
Component:
Performance Tools (Profiler/Timeline)
Type:
defect

Tracking

(Not tracked)

Status:
RESOLVED INVALID

People

(Reporter: fitzgen, Unassigned)

References

Details

(Whiteboard: [devtools-platform])

I'm debugging a performance issue that boils down to a synchronous reflow caused by jQuery.event.fix. I can see which line the synchronous reflow was triggered on, but unfortunately, that doesn't give me as much as I'd hoped: > i = copy.length; > while ( i-- ) { > prop = copy[ i ]; > event[ prop ] = originalEvent[ prop ]; // <---- this line > } It would be really nice if we just had something like Cause: Node.prototype.[get clientHeight] As it is now, the tool gives me no idea whether it is a getter on originalEvent or a setter on event, nor which property.
FWIW, copy is this set of properties: altKey, bubbles, cancelable, ctrlKey, currentTarget, eventPhase, metaKey, relatedTarget, shiftKey, target, timeStamp, view, which, button, buttons, clientX, clientY, offsetX, offsetY, pageX, pageY, screenX, screenY, toElement
Summary: Attach metadata to synchronous reflow markers about which property get/set or method call triggered the synchronous reflow → [marker] Reflow: Attach metadata to synchronous reflow markers about which property get/set or method call triggered the synchronous reflow
Whiteboard: [devtools-platform]
Triaging. Filter on ADRENOCORTICOTROPIC (yes).
Priority: -- → P3
Summary: [marker] Reflow: Attach metadata to synchronous reflow markers about which property get/set or method call triggered the synchronous reflow → Attach metadata to synchronous reflow markers about which property get/set or method call triggered the synchronous reflow
Product: Firefox → DevTools
Severity: normal → S3

This report is related to the old DevTools Profiler.
The Performance panel now points to the new Firefox profiler available at profiler.firefox.com
Closing as Invalid bug

Status: NEW → RESOLVED
Closed: 2 years ago
Resolution: --- → INVALID
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