Open
Bug 2081928
Opened 29 days ago
Updated 28 days ago
Reserve room for four FlexItems when an empty FlexLine in nsFlexContainerFrame::GenerateFlexLines is about to...
Categories
(Core :: Performance: Automated Findings, defect)
Core
Performance: Automated Findings
Tracking
()
UNCONFIRMED
People
(Reporter: perf-ai-bot, Unassigned, NeedInfo)
References
(Blocks 1 open bug)
Details
(Whiteboard: [foofrix:fe48b0b9-0e1f-4372-ae39-72730814e2de])
Attachments
(1 external file)
Reserve room for four FlexItems when an empty FlexLine in nsFlexContainerFrame::GenerateFlexLines is about to...
Problem
GenerateFlexLines appended real flex items into empty per-line nsTArray storage, making the first few items on small non-empty flex lines pay allocator and reallocation overhead; reserving lazily avoids that overhead without adding allocations for flex containers or lines that never receive real flex items.
Performance
- Benchmark: speedometer3
- Test: sp3-full
- Component: Layout
- Local Improvement: 0.31%
Validation
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Reporter | |
Updated•29 days ago
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Blocks: speedometer3
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Reporter | |
Comment 1•29 days ago
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Please move this bug to the correct component.
Once the Phabricator patch is ready for review, please commandeer it.
Flags: needinfo?(dholbert)
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Reporter | |
Comment 2•29 days ago
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Reserve room for four FlexItems when an empty FlexLine in nsFlexContainerFrame::GenerateFlexLines is about to...
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Description
•