Bug 265295

Summary: Speedometer 3: Sync wait in RemoteLayerWithRemoteRenderingBackingStoreCollection::prepareBackingStoresForDisplay
Product: WebKit Reporter: Matt Woodrow <mattwoodrow>
Component: Layout and RenderingAssignee: Matt Woodrow <mattwoodrow>
Status: RESOLVED FIXED    
Severity: Normal CC: bfulgham, fujii.hironori, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Matt Woodrow
Reported 2023-11-23 16:56:17 PST
Having a synchronous call to prepareBackingStoresForDisplay blocks the main thread, while the GPU Process existing commands (like canvas drawing from rAF). We should be able to avoid this in the common case, and just asynchronously let the GPU know that we're starting layer drawing for a frame. <rdar://116792212>
Attachments
Matt Woodrow
Comment 1 2023-11-23 16:58:19 PST
EWS
Comment 2 2023-12-08 11:20:43 PST
Committed 271747@main (3dd074a9e5d2): <https://commits.webkit.org/271747@main> Reviewed commits have been landed. Closing PR #20858 and removing active labels.
Fujii Hironori
Comment 3 2023-12-09 00:54:17 PST
Windows port regressed. Bug 266138 – REGRESSION(271747@main): [Win] ASSERTION FAILED: canSafelyBeUsed() under WebKit::RemoteImageBufferProxy::streamConnection
Note You need to log in before you can comment on or make changes to this bug.