I can't reproduce the explanation in comment #16 for nvidia-550 being faster than nvidia-560 (at least on Turing). Though it sounds like [1], that doesn't seem to affect the shell performance itself.
We've verified that most of the shell's performance problem comes down to an architectural difference between Mesa and Nvidia drivers [2]. And while I thought triple buffering should work around that, it doesn't yet [3]. So [2] is the main fix that the Nvidia driver needs (not counting subtle power saving/scaling differences between 550 and 560). And [3] is a performance improvement to triple buffering that might be possible, and would work around the need for changes to the proprietary Nvidia driver. For completeness there is also benchmark performance [1], which is probably something most Ubuntu users won't notice in everyday usage. [1] https://gitlab.gnome.org/GNOME/mutter/-/issues/3720 [2] https://gitlab.gnome.org/GNOME/mutter/-/issues/3461#note_2236305 [3] https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1441#note_2236368 ** Bug watch added: gitlab.gnome.org/GNOME/mutter/-/issues #3720 https://gitlab.gnome.org/GNOME/mutter/-/issues/3720 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2081140 Title: [regression] Poor performance in Nvidia-560 Wayland sessions Status in mutter package in Ubuntu: In Progress Status in nvidia-graphics-drivers-560 package in Ubuntu: New Bug description: I've just tried the Nvidia-560 driver for the first time and am seeing very poor performance in Wayland sessions. Just tapping the Super key I can see animations stuttering. In 'NVIDIA Settings' it looks like the reason might be a lack of power profiles ("Performance Levels"). Those are only reported correctly if I log into Xorg. And indeed performance in Xorg sessions is much higher, more like what I would expect. P.S. Performance on this machine is much worse in upstream GNOME without triple buffering. So triple buffering is doing its job. ProblemType: Bug DistroRelease: Ubuntu 24.10 Package: nvidia-driver-560 560.35.03-0ubuntu3 ProcVersionSignature: Ubuntu 6.11.0-7.7-generic 6.11.0-rc7 Uname: Linux 6.11.0-7-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.30.0-0ubuntu2 Architecture: amd64 CasperMD5CheckResult: pass Date: Thu Sep 19 14:13:32 2024 InstallationDate: Installed on 2024-06-12 (99 days ago) InstallationMedia: Ubuntu 24.10 "Oracular Oriole" - Daily amd64 (20240528) ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> SourcePackage: nvidia-graphics-drivers-560 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2081140/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
