[Mesa-dev] [Bug 106187] Vulkan apps run on secondary GPU on multi-GPU system

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106187

--- Comment #10 from Christian König <ckoenig.leichtzumerken at gmail.com> ---
Just some technical feedback.

(In reply to Bas Nieuwenhuizen from comment #9)
> 1) Running on a GPU that is not connected to the display is slower. Arguably
> we should be able to optimize this a bit, especially if the two cards are
> identical, but there is always some extra bus traffic that is going to
> happen (and not sure if card B can directly scanout from memory in card A).

At least with dedicated AMD GPUs that isn't possible, but for APUs we recently
enabled scanout from system memory.

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