Date: Fri, 21 May 2021 19:41:02 +0300 From: Evgeniy Khramtsov <evgeniy@khramtsov.org> To: Jan Beich <jbeich@freebsd.org> Cc: freebsd-x11@freebsd.org Subject: Re: Poor OpenGL performance under Xorg Message-ID: <YKfinspcKWHDq3Zr@vax.khramtsov.org> In-Reply-To: <sg2g-dqim-wny@FreeBSD.org> References: <sg2g-dqim-wny@FreeBSD.org>
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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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