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[piotrj3]

Not really because there are ways explicit sync can be implemented in Linux. Eventfd() exist in linux and has properties of explicit sync like working....

[piotrj3]

And how do you know that?

What happens to thread that is epolling. It sleeps in __add_wait_queue_exclusive() as set_current_state(TASK_INTERRUPTIBLE)....

[piotrj3]

To be honest problem is 4 part:

- Wayland by itself is smallest part of problem because it actually is supposed to support explicit sync...

[piotrj3]

Jason Ekstrand tells you exactly why it is not useful.


You grasp now scale of changes to move entirly to explicit sync? Well Nvidia...

[piotrj3]

I am not talking about Vkfence. I am talking about VkSemaphone that one is hacky in oss because no .

But regardless I don't think you can...

[piotrj3]

Yes it is exactly as you write. And they could do that. But comes with issues in the future. Because world is a lot more complicated nowadays.
...

[piotrj3]

Because you can rotate question around.

Why kernel/Mesa drivers should care about it? Isn't it obvious? It affects every single desktop user...

[piotrj3]

I am saying more they could do it, but chose not to, because well it was not beneficial to them....

[piotrj3]

There are no such things as test prior to OpenGL 3.0. And according to what i know from various developers again, they claimed Nvidia implementation of...

[piotrj3]

Provide me a source that Nvidia fails OpenGL 4.6 conformance test. In fact according to article on Khnosos group they were first to provide FULLY conformant...

[piotrj3]

List you submitted is Nouveau (That is why it is MESA matrix) not Nvidia propertiary driver. Also here is proper conformance test : https://github.co...

[piotrj3]

1st. I don't know any GPU driver that totally passed OpenGL comformance test 100% on every still supported GPU on any major platform. There isn't one....

[piotrj3]

By half i more meant most important ones "XWayland does not provide a proper way to synchronization application rendering with presentation"...

[piotrj3]

Half of Wayland's issues you listed are not Nvidia's fault. They are fault that simply a lot of linux stack is implicit sync made and nvidia driver is...

[piotrj3]

Impossible. FSR 2.0 requires same type of integration as DLSS (you need to have direct access to 3d screen with depth of field, color buffers and motion...