On Mon, 2015-03-02 at 22:46 +0000, Alexander Bisogianis wrote:
> > I'm not seeing anything like that on my F22 desktop.
> >
>
> I mean while installing F22, all four CPUs on the KVM host (F21) are
> constantly at 100% usage.
>
> Running top in TTY2, while F22 is installing, I see:
>
> Xorg using constantly CPU 60%-70%
> 2 anaconda processes using constantly CPU 60%-70%
>
> I can understand anaconda, but Xorg?
IIRC there's a spinner or something similar visible during install; it
could well be caused by that. I even think I caught some discussion
about a patch to disable it during automated test runs or something in
#anaconda the other day...
Alexander, try running the installation with this boot option:
inst.updates=https://kparal.fedorapeople.org/tmp/no-spinner.img
It should disable spinner animation. Then compare the CPU usage. I still haven't
gotten to reporting it as a bug, but it's true that the spinner seems to be a
*gigantic* performance hog, making all our installations take much longer, especially in
VMs.