Closed Bug 1526040 Opened 6 years ago Closed 6 years ago

Lots of time spent in flex/grid reflow during Google News pageload

Categories

(Core :: Layout: Flexbox, enhancement, P3)

Product:
Core
Component:
Layout: Flexbox
Type:
enhancement

Tracking

()

Status:
RESOLVED DUPLICATE of bug 1524056
Tracking Flags:
Tracking Status
firefox67 --- affected

People

(Reporter: dholbert, Unassigned)

References

Details

Spinning this off from bug 1524056 -- this Google News page seems to spend a lot of time in flex reflow:
https://news.google.com/stories/CAAqOQgKIjNDQklTSURvSmMzUnZjbmt0TXpZd1NoTUtFUWlDb3BqRmpZQU1FYjN4UUd4M1BLdkFLQUFQAQ?hl=en-US&gl=US&ceid=US%3Aen

Here's a profile:
https://perfht.ml/2RMJbr9

We have a few reflows that are 200-300ms long there (including one during the "grey blobs instead of images" part of pageload).

I guess this is the main explanation for bug 1524056, so I'll just morph that bug to entirely cover this issue.

Status: NEW → RESOLVED
Closed: 6 years ago
Resolution: --- → DUPLICATE
Summary: Lots of time spent in flex reflow during Google News pageload → Lots of time spent in flex/grid reflow during Google News pageload
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