this might be the same as the reported upstream issue in mutter
https://gitlab.gnome.org/GNOME/mutter/-/issues/3134
** Bug watch added: gitlab.gnome.org/GNOME/mutter/-/issues #3134
https://gitlab.gnome.org/GNOME/mutter/-/issues/3134
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I tested all of these:
* gnome-extensions disable tiling-assist...@ubuntu.com
* gnome-extensions disable ubuntu-appindicat...@ubuntu.com
* gnome-extensions disable d...@rastersoft.com
* gnome-extensions disable ubuntu-d...@ubuntu.com
and then had no effect on the performance on noble (yes
Sorry I missed the replies in my email
I will test disabling the extensions later
I can confirm that these are the same (because I use the same custom
kernel and GL/Vulkan/EGL/GLES driverstack):
* lspci -k # to see if the kernel driver changed
* es2_info | grep ^GL_ # to see if the GL driver
** Also affects: mutter (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2052913
Title:
Large Performance Regression in
Also keep an eye on:
https://discourse.ubuntu.com/t/24-04-considerably-slower-than-20-04-or-22-04-for-some-high-system-percentage-usage-cases/41987
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It also sounds like fullscreen direct scanout might have worked in jammy
but doesn't in noble. You can test that theory by comparing the windowed
performance between jammy and noble. Or by checking the scanout method
using MUTTER_DEBUG=kms and grepping the log for "Post" (Wayland only
though).
Great bug report, thanks.
Please also try:
* gnome-extensions disable tiling-assist...@ubuntu.com
* gnome-extensions disable ubuntu-appindicat...@ubuntu.com
* gnome-extensions disable d...@rastersoft.com
* gnome-extensions disable ubuntu-d...@ubuntu.com
* lspci -k # to see if the kernel
** Tags added: arm64 noble performance
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https://bugs.launchpad.net/bugs/2052913
Title:
Large Performance Regression in gnome-shell from Ubuntu Jammy to
Ubuntu
** Description changed:
- Test system: ARM64 Ubuntu Jammy and Ubuntu Noble
+ Test system: ARM64 Ubuntu Jammy (gnome-shell 42.9-0ubuntu2) and Ubuntu Noble
(gnome-shell 45.3-1ubuntu1)
Default Ubuntu GNOME desktop environment used with no user added extensions.
GPU driverstack identical
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