This bug is on hold. The conditions required to trigger it are less
common, and the benefit of fixing it less significant, than other
performance bugs (also in progress right now).
** Changed in: gnome-shell (Ubuntu)
Status: In Progress => Confirmed
** Changed in: gnome-shell-extension-ubuntu-dock (Ubuntu)
Status: In Progress => Confirmed
** Changed in: mutter (Ubuntu)
Status: In Progress => Confirmed
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https://bugs.launchpad.net/bugs/1743976
Title:
gnome-shell is wasting CPU repainting unchanging panels
Status in GNOME Shell:
Incomplete
Status in gnome-shell package in Ubuntu:
Confirmed
Status in gnome-shell-extension-ubuntu-dock package in Ubuntu:
Confirmed
Status in mutter package in Ubuntu:
Confirmed
Bug description:
gnome-shell is wasting CPU repainting an unchanging panel and dock.
Every time an app window changes all visible actors including the
panel get repainted. But the panels mostly doesn't change, so should
be cached via offscreen-redirect instead.
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https://bugs.launchpad.net/gnome-shell/+bug/1743976/+subscriptions
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