Le mardi 20 octobre 2020 à 12:32 +0200, Petr Pisar a écrit :
In my opinion what became slugish (besides web browsers) are desktop
environments that "accelerated" GUI by a move to OpenGL and
JavaScript.
A typical examples are login managers. GDM actually loads full Gnome,
thus GDM
consumes 500 MB of memory and after logging in Gnome shell for user's
session
takes another 500 MB. SDDM becomes insanely graphics-demanding. The
QML
backend first started polling old Intel VGAs, then spits flickering
artifacts
on old Radeons. Regarding feature-parity it completely looses to KDM
(no XDM,
broken PAM with non-password authentication mechisms, it even became
a blocker
for F33).
The worst thing is that was done as the same time that wayland moved
input management to the window manager. Any random GUI action can now
result in feel-good GUI prettification that will starve input
processing of CPU, resulting in frozen mouse pointers and missed
repeated or reordered keystrokes.
So, useless desktop except as a browser shell where typing is marginal.
journalctl | grep gnome-shell | grep 'libinput error' | grep
'your
system is too slow' | wc -l
7060
cat /proc/cpuinfo | grep model
model : 142
model name : Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
model : 142
model name : Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
model : 142
model name : Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
model : 142
model name : Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
Hardly an underpowered system
--
Nicolas Mailhot