Closed
Bug 1505584
Opened 6 years ago
Closed 4 years ago
slow reflows for changes in sibling of 0-height abspos scrollable flex container
Categories
(Core :: Layout: Flexbox, defect, P3)
Core
Layout: Flexbox
Tracking
()
RESOLVED
WORKSFORME
| Tracking | Status | |
|---|---|---|
| firefox65 | --- | affected |
People
(Reporter: dholbert, Unassigned)
References
(Depends on 2 open bugs, Blocks 1 open bug, )
Details
STR:
0. Have the Gecko Profiler installed ( https://perf-html.io/ )
1. Load https://bugzilla.mozilla.org/attachment.cgi?id=9020942
2. Start profiling.
3. Focus the text and type a few characters (e.g. "abc")
4. Capture profile.
5. Look for reflows on the Marker Chart (or as blue bars in the top timeline view)
ACTUAL RESULTS:
My profile: https://perfht.ml/2SSKPJH
There's a >20ms reflow with each keypress.
EXPECTED RESULTS:
We shouldn't have that much work to do -- the reflows should be < 1ms.
(I'm spinning this off of bug 1376536 -- this testcase was initially attached as a reduced testcase there, but it turns out that the patch that'll be fixing that bug doesn't actually fix this testcase.)
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Reporter | |
Updated•6 years ago
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Reporter | |
Comment 1•4 years ago
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This seems to have been fixed! Here's a profile from today's nightly: https://share.firefox.dev/2Avqdmo
The per-keypress reflows are 0.2ms to 0.3ms in duration.
Status: NEW → RESOLVED
Closed: 4 years ago
Resolution: --- → WORKSFORME
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Description
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