This is not a new problem, it happens since I can recall in a default virt-manager qemu-kvm VM using qxl video. It's easy to reproduce in VM as well as baremetal.
See screenshot here: https://drive.google.com/open?id=1TK-QnaBDzbcu7hxVEN40x2DlA4NyDMB2
The questions are: is it expected these processes take up this much CPU? is there low hanging fruit here? Even cutting it in half would be huge. How to profile and file a bug against these likely separate problems?
Maybe it's worth in the next cycle trying zstd for squashfs.img compression in lieu of xz. That might be related to loop1 taking such a big hit, but I don't know for sure that loop1 rather than loop0 is really the process taking the xz decompression hit.
On Mon, 2018-03-26 at 18:31 -0600, Chris Murphy wrote:
The questions are...
Hi, maybe, in case of gnome-shell, it's related to the GtkSpinner there? https://bugzilla.gnome.org/show_bug.cgi?id=684639#c27
And if your VM works the same as mine rawhide VM, then you should not move the mouse cursor left-right-left-right-... quickly, neither in gdm, because it causes significant CPU usage as well, even when moving the mouse above the gray area in gdm, where is nothing to be clicked.
Just mine semi-recent experience. Bye, Milan
On Tue, 2018-03-27 at 09:42 +0200, Milan Crha wrote:
On Mon, 2018-03-26 at 18:31 -0600, Chris Murphy wrote:
The questions are...
Hi, maybe, in case of gnome-shell, it's related to the GtkSpinner there? https://bugzilla.gnome.org/show_bug.cgi?id=684639#c27
Yeah, that was my initial thought too. We've definitely discussed that spinner wrt CPU usage in anaconda before.
On Tue, 2018-03-27 at 09:26 -0700, Adam Williamson wrote:
On Tue, 2018-03-27 at 09:42 +0200, Milan Crha wrote:
On Mon, 2018-03-26 at 18:31 -0600, Chris Murphy wrote:
The questions are...
Hi, maybe, in case of gnome-shell, it's related to the GtkSpinner there? https://bugzilla.gnome.org/show_bug.cgi?id=684639#c27
Yeah, that was my initial thought too. We've definitely discussed that spinner wrt CPU usage in anaconda before.
More here:
https://bugzilla.redhat.com/show_bug.cgi?id=1204242
I don't think gnome-shell eating this much CPU can be solely caused by a GTK+ bug - even if GTK+ is redrawing the entire window constantly, that cannot cause 40x more CPU to be used in gnome-shell than in anaconda unless something else is going on.
Owen
On Tue, Mar 27, 2018 at 12:29 PM, Adam Williamson < adamwill@fedoraproject.org> wrote:
On Tue, 2018-03-27 at 09:26 -0700, Adam Williamson wrote:
On Tue, 2018-03-27 at 09:42 +0200, Milan Crha wrote:
On Mon, 2018-03-26 at 18:31 -0600, Chris Murphy wrote:
The questions are...
Hi,maybe, in case of gnome-shell, it's related to the GtkSpinner there? https://bugzilla.gnome.org/show_bug.cgi?id=684639#c27
Yeah, that was my initial thought too. We've definitely discussed that spinner wrt CPU usage in anaconda before.
More here:
https://bugzilla.redhat.com/show_bug.cgi?id=1204242
Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net http://www.happyassassin.net _______________________________________________ desktop mailing list -- desktop@lists.fedoraproject.org To unsubscribe send an email to desktop-leave@lists.fedoraproject.org
On Tue, Mar 27, 2018 at 10:29 AM, Adam Williamson adamwill@fedoraproject.org wrote:
On Tue, 2018-03-27 at 09:26 -0700, Adam Williamson wrote:
On Tue, 2018-03-27 at 09:42 +0200, Milan Crha wrote:
On Mon, 2018-03-26 at 18:31 -0600, Chris Murphy wrote:
The questions are...
Hi,maybe, in case of gnome-shell, it's related to the GtkSpinner there? https://bugzilla.gnome.org/show_bug.cgi?id=684639#c27
Yeah, that was my initial thought too. We've definitely discussed that spinner wrt CPU usage in anaconda before.
More here:
Tried this suggestion in the bug: create /etc/gtk-3.0/settings.ini with this contents: [Settings] gtk-enable-animations=0
No change.
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