Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: gnome-shell-extension-desktop-icons-ng (Ubuntu)
Status: New => Confirmed
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: gnome-shell (Ubuntu)
Status: New => Confirmed
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** Changed in: gnome-shell (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/2051383
Title:
gnome-shell high CPU utilization when moving a
Thanks, yes I'm aware Desktop Icons NG is part of the problem here. I
thought we already had a bug to track that but I can't find it so will
include that here.
** Also affects: gnome-shell-extension-desktop-icons-ng (Ubuntu)
Importance: Undecided
Status: New
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To answer your first question: I'm testing on a freshly booted system
with no applications running.
Regarding extensions:
After I disable the Desktop Icons NG extension (appears to be one of the
built-ins), peak CPU usage for gnome-shell goes from ~55% to ~35% when
moving over an empty desktop.
If you run 'sudo evtest', select the mouse and then wiggle it, what kind
of output do you see?
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https://bugs.launchpad.net/bugs/2051383
Title:
gnome-shell high CPU
This is strange. I've been profiling gnome-shell 42 on jammy and gnome-
shell 46 on noble. Neither have the bug, at least not with my lowly
1000Hz mice (which seems to be the same polling rate as the Razer
DeathAdder V2).
The profile in comment #18 is intriguing because it very clearly shows
"Normal" or not, we want CPU usage to be lower so I will look into this
bug in the next month or so.
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https://bugs.launchpad.net/bugs/2051383
Title:
gnome-shell
It seems to also track mouse movement when playing games in full-screen
mode which reduces FPS. Is this normal?
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https://bugs.launchpad.net/bugs/2051383
Title:
** Changed in: gnome-shell (Ubuntu)
Assignee: (unassigned) => Daniel van Vugt (vanvugt)
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https://bugs.launchpad.net/bugs/2051383
Title:
gnome-shell high CPU
I've noticed high cpu usage of gnome-shell with a normal (125 Hz)
Logitech ERGO M575 on ubuntu 22.04.
Just moving the mouse over the empty desktop will increase CPU usage of
gnome-shell from single digit to up to 70%.
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: gnome-shell (Ubuntu)
Status: New => Confirmed
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Great information, thanks.
Regarding usbhid.mousepoll=N having no effect, I forgot about bug
1625912.
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https://bugs.launchpad.net/bugs/2051383
Title:
gnome-shell
perf report
** Attachment added: "perf-report.txt"
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2051383/+attachment/5744623/+files/perf-report.txt
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I've noticed that at some point gnome-shell starts consuming twice that
amount of CPU resources when moving my mouse over the desktop, reaching
nearly 100%, i.e. to the point where the desktop experience is not good.
I'm not sure what it is that I do that triggers is. I've experienced
this 2 or 3
Unfortunately, setting usbhid.mousepoll didn't for for my mouse, it
keeps using 1000Hz for some reason, but thanks for your suggestion.
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