Small delay to launch cosmic-workspace

[wiiznokes]

I would say half of the time, there is a small delay to open the workspace overview (~300ms ig).

[wiiznokes]

It seems to happens when this lines are logged:

juil. 02 21:26:36.678443 fedasus cosmic-workspaces[169388]: Allocated atlas entry: Fragmented { size: Size { width: 4032, height: 3024 }, fragments: [Fragment { position: (0, 0), allocation: Full { layer: 0 } }, Fragment { position: (2048, 0), allocation: Partial { layer: 1, region: Region { id: AllocId(2), rectangle: Box2D((0, 0), (1984, 2048)) } } }, Fragment { position: (0, 2048), allocation: Partial { layer: 2, region: Region { id: AllocId(0), rectangle: Box2D((0, 0), (2048, 976)) } } }, Fragment { position: (2048, 2048), allocation: Partial { layer: 2, region: Region { id: AllocId(3), rectangle: Box2D((0, 976), (1984, 1952)) } } }] }
juil. 02 21:26:36.770400 fedasus cosmic-workspaces[169388]: Current atlas: Atlas { texture: Texture { context: ContextWgpuCore { type: "Native" }, id: ObjectId { id: Some(2305843013508661252), global_id: Some(2305843013508661252) }, data: Any { .. }, owned: true, descriptor: TextureDescriptor { label: None, size: (2048, 2048, 3), mip_level_count: 1, sample_count: 1, dimension: D2, format: Rgba8Unorm, usage: TextureUsages(COPY_SRC | COPY_DST | TEXTURE_BINDING), view_formats: [] } }, texture_view: TextureView { context: ContextWgpuCore { type: "Native" }, id: ObjectId { id: Some(2305843013508661252), global_id: Some(2305843013508661252) }, data: Any { .. } }, layers: [Full, Busy(Allocator), Busy(Allocator)] }

It seems that sometime, the buffer is not deallocated, ei, this lines does not show

juil. 02 21:26:35.783537 fedasus cosmic-workspaces[169388]: Removing atlas entry: Fragmented { size: Size { width: 4032, height: 3024 }, fragments: [Fragment { position: (0, 0), allocation: Full { layer: 0 } }, Fragment { position: (2048, 0), allocation: Partial { layer: 1, region: Region { id: AllocId(2), rectangle: Box2D((0, 0), (1984, 2048)) } } }, Fragment { position: (0, 2048), allocation: Partial { layer: 2, region: Region { id: AllocId(0), rectangle: Box2D((0, 0), (2048, 976)) } } }, Fragment { position: (2048, 2048), allocation: Partial { layer: 2, region: Region { id: AllocId(3), rectangle: Box2D((0, 976), (1984, 1952)) } } }] }
juil. 02 21:26:35.783543 fedasus cosmic-workspaces[169388]: Deallocating atlas: Full { layer: 0 }
juil. 02 21:26:35.783549 fedasus cosmic-workspaces[169388]: Deallocating atlas: Partial { layer: 1, region: Region { id: AllocId(2), rectangle: Box2D((0, 0), (1984, 2048)) } }
juil. 02 21:26:35.783554 fedasus cosmic-workspaces[169388]: Deallocating atlas: Partial { layer: 2, region: Region { id: AllocId(0), rectangle: Box2D((0, 0), (2048, 976)) } }
juil. 02 21:26:35.783559 fedasus cosmic-workspaces[169388]: Deallocating atlas: Partial { layer: 2, region: Region { id: AllocId(3), rectangle: Box2D((0, 976), (1984, 1952)) } }

[ids1024]

Yeah, showing the background image seems to be contributing to the opening time for cosmic-workspaces.

[Drakulix]

Yeah, showing the background image seems to be contributing to the opening time for cosmic-workspaces.

I still think we should just make cosmic-comp hide everything but the background, when rendering the overview. We adjust rendering for it anyway.

[ids1024]

Yeah. Another special case like that in the compositor is probably the best solution, at least for now.

[ids1024]

This is improved with 686f4e7 (pop-os/cosmic-comp#609 is required for this to work properly).

It still isn't entirely instantaneous, which should be possible, so I think the issue can stay open for now.

[hgaiser]

Launching cosmic-workspaces shows the background quite quickly now (this wasn't the case before 686f4e7 AFAIK). However the workspaces and the applications show up with a noticeable delay (I would estimate roughly 0.5s-1.0s).