RESOLVED FIXED265295
Speedometer 3: Sync wait in RemoteLayerWithRemoteRenderingBackingStoreCollection::prepareBackingStoresForDisplay 
https://bugs.webkit.org/show_bug.cgi?id=265295
Summary Speedometer 3: Sync wait in RemoteLayerWithRemoteRenderingBackingStoreCollect...
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
Add attachment proposed patch, testcase, etc.
Matt Woodrow
Comment 1 2023-11-23 16:58:19 PST
Pull request: https://github.com/WebKit/WebKit/pull/20858
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.