An Important GNOME Performance Fix Has Landed

[RealNC]

Were you running Wayland? I run my monitor at 120hz and GNOME on Wayland is absolute stutterfest, but it runs fine on x.org.

No, I'm on X11. (With NVidia drivers.)

[microcode]

Man, the state of things seems pretty bad in big desktop land. I have a 144Hz display as of recent, and I can't imagine how frustrating it would be if the desktop (before any applications!) was already limiting my framerates to less than 60fps. Happy to be running dwm with tearfree X. ;- )

[Vash63]

(cc RealNC ) This might be becase Gnome on Wayland is fixed at 60Hz, whatever your monitor refresh rate is. https://bugzilla.gnome.org/show_bug.cgi?id=781296

Interesting. I'll definitely be sticking with Xorg for a bit given all the problems on Wayland. Reading this bug report it looks like this only impacts X11 applications?

[trek]

I think 60 FPS is more than enough for a desktop rendering.

yes, it is enough, but what if I launch an application?
the application needs to render graphics, but the pipeline is already working on rendering the gnome desktop and the FPS fall inevitably down

[Almindor]

"With this fix, the median frame-time drops from 16.97ms to 12.97ms."

Seems insanely high for just rendering the desktop.

It is. there is something terribly wrong here still.

Also, as a side note same bug (the one still there) is hitting addons that show things in intervals. I had the system monitor addon that drew at the top panel and it caused my mouse to jitter as it refreshed. Was a nice find when I removed it. I suspect it's a similar issue. I wouldn't consider this bug fixed with this kind of performance.

[Brisse]

(cc RealNC ) This might be becase Gnome on Wayland is fixed at 60Hz, whatever your monitor refresh rate is. https://bugzilla.gnome.org/show_bug.cgi?id=781296

It's that, and it's also the poor input handling: https://bugzilla.gnome.org/show_bug.cgi?id=745032

[franglais125]

Were you running Wayland? I run my monitor at 120hz and GNOME on Wayland is absolute stutterfest, but it runs fine on x.org.

(cc RealNC ) This might be becase Gnome on Wayland is fixed at 60Hz, whatever your monitor refresh rate is. https://bugzilla.gnome.org/show_bug.cgi?id=781296

[pracedru]

"With this fix, the median frame-time drops from 16.97ms to 12.97ms."

Seems insanely high for just rendering the desktop.

Yes. The desktop frame rate should be in sync with the screen. If the desktop can't deliver frames at less than 12.97 ms then it only takes a little bit of overhead from other apps to make the desktop stutter on a 60hZ screen. I have noticed this on my desktop with a Core i7 and a Nvidia GTX 1060.
This is indeed very poor performance. I really hope they will focus on this, because the desktop should'nt be in the way.

[Dea1993]

so we can remove seconds in clock to "fix" the performance issue on gnome 3.26??
which version of gnome are affected??

[Brisse]

60fps can indeed be very jarring on a high refresh rate display, especially if frame-times are uneven.