[Mesa-dev] [BUG] Large slowdown with RADV / Warcraft with latest Mesa from Git.
michel at daenzer.net
Fri Jan 8 17:16:15 UTC 2021
On 2021-01-08 5:54 p.m., Chris Rankin wrote:
> I've just noticed a large drop in FPS (from 60 down to 15) when playing World of Warcraft with the latest Mesa from Git.
> A quick git bisect has identified this commit:
> 4292fb2139282e6906d4ad2a8be2fd81ed7ca8af is the first bad commit
> commit 4292fb2139282e6906d4ad2a8be2fd81ed7ca8af
> Author: Michel Dänzer <mdaenzer at redhat.com>
> Date: Mon Dec 21 15:41:56 2020 +0100
> wsi/x11: Use PresentOptionAsync for MAILBOX present mode with Xwayland
> This allows Xwayland to forward buffers to the Wayland compositor ASAP
> for fullscreen / undecorated windows, which in turn allows true mailbox
> behaviour in the Wayland compositor.
> Without this, Xwayland has to emulate the mailbox behaviour itself,
> which it cannot do as well as the Wayland compositor by design.
> Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8197>
> src/vulkan/wsi/wsi_common_x11.c | 7 +++++++
> 1 file changed, 7 insertions(+)
> I am playing WoW with this release of Wine:
> And this version of DXVK:
> Curiously, I am using Xorg rather than Wayland, and so don't understand why this commit should affect me.
Does the attached patch fix it?
P.S. Mesa uses GitLab issues for bug tracking now:
Earthling Michel Dänzer | https://redhat.com
Libre software enthusiast | Mesa and X developer
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