Re: Poor OpenGL performance under Xorg

Evgeniy Khramtsov via freebsd-x11 <[email protected]>
Newsgroups gmane.os.freebsd.devel.x11
Message-ID <[email protected]> 
Does it happen without libglvnd? My guess would be that libglvnd
dlopen() or dlsym() the GL libs, while vulkan-loader might not be
affected by what libglvnd does. Does Xorg dlopen() libs?

> While investigating Wayland performance for light gaming I've noticed an
> anomaly with OpenGL under Xorg which doesn't translate to Vulkan under
> Xorg or OpenGL under Xwayland. With DRI3 both Xwayland and Xorg should
> be similar, especially in fullscreen when compositing is disabled.
> 
> See https://reviews.freebsd.org/P501
> 
> Is this a flaw in benchmark or GPU driver?
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