Some performance criticisms of F25
by Michael Catanzaro
Jiri found this review (among many) of Fedora 25:
It includes a couple recommendations:
* We should restore systemd-readahead to speed boot time by ~30% for
users without SSDs. Endless has a downstream patch for this. Or we
could use Ubuntu's readahead utility.
* We should switch from CFQ to deadline I/O scheduler (which Ubuntu
has been using for years) for subjective massive responsiveness
improvements when the system is under load
Of these, the later seems easier to change and more important. Anyone
know why we're still using CFQ? If the answer is "it's better for
servers" then perhaps we need a mechanism to adjust this on a per-
Just wanted to put these issues back on the radar....
5 years, 8 months
[wayland] Applications are unable to grab input
by Christian Stadelmann
One main difference between x11 and wayland is that in x11 all applications receive all input whereas in wayland the compositor receives input and decides which application may receive it.
This causes a major issue with application which need input grab for running or showing a nested desktop. This affects e.g. GUI virtual machines (SPICE clients), RDP clients, VNC clients, nested kwin/gnome-shell/whatever. See also: https://bugzilla.redhat.com/show_bug.cgi?id=1285770 . Games might also be affected, I don't know.
I'm posting this here to raise attention because
1. to fix this we need another protocol (extension)
2. this issue can't be fixed in a single application, it needs the whole stack (wayland library, compositors, affected applications) to change
Compared to the other bugs in "WaylandRelated" lists  , these bugs need architecture design, not just fixing bugs in one package.
I don't know whether this mailing list is the right place to discuss an issue like this. If you know better, please tell me.
5 years, 11 months
Why is ABRT missing in F26 Workstation composes?
by Jiri Eischmann
I wonder why gnome-abrt is not part of the default installation in
Fedora 26 Workstation composes. Is it intentional or just a mistake?
If intentional, what is the reason?
I find ABRT crash report stats pretty useful.
5 years, 12 months