Re: Poor OpenGL performance under Xorg

From: Evgeniy Khramtsov via freebsd-x11 <>
Date: Mon, 21 Jun 2021 20:24:45 +0300
Is your hardware overclocked? I've got lower result on CFL GT2 8086:3E9B
(QTJ2) with single-{DIMM,rank} 8 GB 2133 MHz. Or do you have faster RAM?

The hardware is not faulty after performance check in PassMark,
and glmark2 in Fedora 34 (Linux has 2x less OpenGL score compared to
FreeBSD for some reason). In PassMark, iGPU performs as expected of 630.
I have no data about the expected glmark2 score in Linux for a 630.

On Fri, May 21, 2021 at 06:02:09PM +0200, Jan Beich wrote:
> 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
> Is this a flaw in benchmark or GPU driver?
Received on Mon Jun 21 2021 - 17:24:45 UTC

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