Open
Bug 1688963
Opened 4 years ago
Updated 2 years ago
WebRender initialization can block the main thread for an appreciable amount of time
Categories
(Core :: Graphics: WebRender, defect)
Core
Graphics: WebRender
Tracking
()
NEW
| Performance Impact | medium |
People
(Reporter: mstange, Unassigned)
References
(Blocks 1 open bug)
Details
(Keywords: perf:startup, Whiteboard: [bhr:PWebRenderBridge::Msg_EnsureConnected])
Whenever we open a window, the main thread blocks in PWebRenderBridgeChild::SendEnsureConnected. Apparently this can take a while, because this stack shows up on the background hang reporter dashboard.
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Updated•4 years ago
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Severity: -- → S3
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Comment 1•4 years ago
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On Fenix startup, I'm seeing about 55ms in the PWebRenderBridge::Msg_EnsureConnected sync IPC message. (Moto G5)
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Updated•4 years ago
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Blocks: GeckoView_Startup
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Comment 2•3 years ago
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Startup profile showing that we get blocked for >400ms on PCompositorWidget::Msg_Initialize https://share.firefox.dev/3JKTk2S
Performance Impact: --- → ?
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Updated•3 years ago
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Keywords: perf:startup
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Updated•3 years ago
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Performance Impact: ? → P2
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Description
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