Bug 149347

Summary: [Win] Use tiled drawing for main background layer
Product: WebKit Reporter: Brent Fulgham <bfulgham>
Component: Layout and RenderingAssignee: Brent Fulgham <bfulgham>
Status: RESOLVED FIXED    
Severity: Normal CC: bfulgham, commit-queue, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: PC   
OS: All   
Attachments:
Description Flags
Patch achristensen: review+

Description Brent Fulgham 2015-09-18 10:17:44 PDT
When compositing layers are used on Windows, a single large layer is created for the root of the rendering tree. If the markup involves creating large offscreen areas, WebKit can end up allocating a lot of memory.

Instead, we should use the tiled drawing logic for the background layer so that we can limit the amount of memory used.
Comment 1 Radar WebKit Bug Importer 2015-09-18 10:18:27 PDT
<rdar://problem/22759632>
Comment 2 Brent Fulgham 2015-09-18 10:26:49 PDT
Created attachment 261505 [details]
Patch
Comment 3 Alex Christensen 2015-09-18 11:14:11 PDT
Comment on attachment 261505 [details]
Patch

r=me
Comment 4 Brent Fulgham 2015-09-18 11:23:42 PDT
Committed r189974: <http://trac.webkit.org/changeset/189974>