Open
Bug 2082403
Opened 1 month ago
Updated 19 days ago
Skip retargeted touch-target checks during event dispatch for non-touch events.
Categories
(Core :: Performance: Automated Findings, defect)
Core
Performance: Automated Findings
Tracking
()
UNCONFIRMED
People
(Reporter: perf-ai-bot, Assigned: smaug)
References
(Blocks 1 open bug)
Details
(Whiteboard: [foofrix:09bc1d7d-5cff-4ab9-a640-7f3be7dd0d75])
Attachments
(1 external file)
Skip retargeted touch-target checks during event dispatch for non-touch events.
Problem
Speedometer 3 spends measurable time walking DOM event target chains and calling HasRetargetTouchTargets() even for non-touch events, where touch retargeting cannot apply. Guarding those checks with the existing touchEvent pointer avoids repeated Maybe checks on the common non-touch dispatch path without changing touch-event behavior.
Performance
- Benchmark: speedometer3
- Component: DOM
- Local Improvement: 1.75%
Validation
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Reporter | |
Updated•1 month ago
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Blocks: speedometer3
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Reporter | |
Comment 1•1 month ago
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Please move this bug to the correct component.
Once the Phabricator patch is ready for review, please commandeer it.
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Assignee | |
Updated•1 month ago
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Assignee: nobody → smaug
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Reporter | |
Comment 2•1 month ago
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Skip retargeted touch-target checks during event dispatch for non-touch events.
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Comment 3•23 days ago
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The severity field is not set for this bug.
:fdoty, could you have a look please?
For more information, please visit BugBot documentation.
Flags: needinfo?(fdoty)
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Updated•19 days ago
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Severity: -- → S2
Flags: needinfo?(fdoty)
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Description
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