According to upstream there is a ~12% performance loss when mesa is built with glvnd. https://gitlab.freedesktop.org/glvnd/libglvnd/-/issues/222 My understanding that the glvnd is only strictly needed the the proprietary Nvidia driver, but at least its not a hard requirement for AMD which I use. Can the glvnd USE flag please be returned?
Note that this is about CPU rather than GPU, so it means virtually no difference for games that aren't stuck using 1 cpu thread at 100% to render (like glxgears). At this point the whole Gentoo ecosystem is kinda tied to the glvnd layout and it'd be rather messy to try to change it back.
> Note that this is about CPU rather than GPU, so it means virtually no difference for games that aren't stuck using 1 cpu thread at 100% to render This is common with emulators.
No, I'm not going to add IUSE=glvnd. It's far too much hassle to maintain all the machinery to allow USE=glvnd.
@Matt That is extremely unfortuante, a ~12% performance loss is not trivial.
