Open
Bug 1292179
Opened 8 years ago
Updated 2 years ago
Large performance slowdown when <canvas> width is greater than 16384
Categories
(Core :: Graphics: Canvas2D, defect, P3)
Tracking
()
UNCONFIRMED
People
(Reporter: jerryj, Unassigned)
References
Details
(Whiteboard: [gfx-noted])
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36
Steps to reproduce:
1. Visit vsynctester.com
2. click on gear icon
3. under 'background image', set megapixel value to 50
4. notice in display that background image width is >16384
Actual results:
when background image width is >16384, performance all of sudden tanks.
Tested on Dell Inspiron 15 (Intel HD Graphics 5500)
Expected results:
no dramatic slowdown
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Updated•8 years ago
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QA Whiteboard: [bugday-20160808]
Component: Untriaged → Canvas: 2D
Product: Firefox → Core
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Comment 1•8 years ago
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Ethan, is this related to your current canvas 2d work?
Flags: needinfo?(ethlin)
Whiteboard: [gfx-noted]
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Comment 2•7 years ago
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I'm not working on canvas 2d work now, so clear the needinfo.
Flags: needinfo?(ethlin)
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Updated•7 years ago
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Priority: -- → P3
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Updated•2 years ago
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Severity: normal → S3
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Description
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