Closed Bug 1440715 Opened 7 years ago Closed 3 months ago

Scrolling through gmail's email editor with webrender enabled -> 100% cpu

Categories

(Core :: Graphics: WebRender, defect, P2)

60 Branch
defect

Tracking

()

RESOLVED INACTIVE

People

(Reporter: linuxhippy, Unassigned)

References

(Blocks 1 open bug)

Details

(Keywords: nightly-community)

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
Build ID: 20180223100113

Steps to reproduce:

* replied to a large email in gmail
* held an arrow key pressed to scroll through the email


Actual results:

Very High CPU useage with WebRender enabled: https://perf-html.io/from-addon/calltree/?hiddenThreads=&thread=4&threadOrder=0-2-3-4-1&v=2

Almost all time is spent in IsNodeSelected / ComparePoints:
https://perfht.ml/2CEJbC2
Summary: Scrolling through an gmail email with webrender enabled -> 100% cpu → Scrolling through gmail's email editor with webrender enabled -> 100% cpu
Component: Untriaged → Graphics: WebRender
Product: Firefox → Core
Status: UNCONFIRMED → RESOLVED
Closed: 7 years ago
Resolution: --- → DUPLICATE
Blocks: 1401574
Status: RESOLVED → REOPENED
Ever confirmed: true
Resolution: DUPLICATE → ---
Can you still reproduce this?
Flags: needinfo?(linuxhippy)
Blocks: stage-wr-trains
No longer blocks: stage-wr-next
Blocks: stage-wr-next
No longer blocks: stage-wr-trains
Severity: normal → S3

Clear a needinfo that is pending on an inactive user.

Inactive users most likely will not respond; if the missing information is essential and cannot be collected another way, the bug maybe should be closed as INCOMPLETE.

For more information, please visit BugBot documentation.

Flags: needinfo?(linuxhippy)
Status: REOPENED → RESOLVED
Closed: 7 years ago3 months ago
Resolution: --- → INACTIVE
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