https://bugs.kde.org/show_bug.cgi?id=371889
Enrico Tagliavini <enrico.tagliav...@gmail.com> changed:
What |Removed |Added
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CC| |enrico.tagliav...@gmail.com
--- Comment #2 from Enrico Tagliavini <enrico.tagliav...@gmail.com> ---
Same for me on Fedora 24
After multi hours usage on a laptop with external monitor attached, powered by
Skylake CPU and GPU (i7-6700HQ), Plasma becomes slower and slower, even the
mouse pointer slows down. I observed the plasmashell process using more and
more CPU and RAM over time. Restarting plasmashell fixes the issue temporarily,
it reappears after enough time.
I just found another user on IRC (Lipsum) having the exact same problem. He
also has multi monitor and Skylake.
I tried both modesetting DDX and intel DDX, it happens with both. With
modesetting it's worst though, probably because glamor is slower than SNA.
Version-Release number of selected component (if applicable):
root@enrico-dell ~ # rpm -qa | grep
'plasma-workspace-5\|mesa-dri\|modset\|xorg-x11-server-Xorg'
xorg-x11-server-Xorg-1.18.4-4.fc24.x86_64
plasma-workspace-5.7.5-2.fc24.x86_64
mesa-dri-drivers-12.0.3-2.fc24.x86_64
Steps to Reproduce:
1. Multi monitor setup is required
2. Start a plasma session and use it normally
3. Monitor plasmashell CPU and RAM usage over time
4. Notice the performance of plasma, especially on the external monitor, become
sluggish
Actual results:
Plasma uses more and more RAM and CPU, performance is degraded and user
experience is affected (sluggish interaction, slow response from the plasma
shell)
Expected results:
CPU and RAM usage should be faily constant over time. Responsiveness of the
shell should be constant in time and not sluggish.
Additional info:
I'm not sure if a better than full HD monitor is required. I have the following
configration:
taglenri@enrico-dell ~ $ xrandr
Screen 0: minimum 8 x 8, current 4480 x 1440, maximum 32767 x 32767
eDP1 connected primary 1920x1080+2560+0 (normal left inverted right x axis y
axis) 350mm x 190mm
1920x1080 59.93*+
1400x1050 59.98
1600x900 60.00
1280x1024 60.02
1280x960 60.00
1368x768 60.00
1280x720 60.00
1024x768 60.00
1024x576 60.00
960x540 60.00
800x600 60.32 56.25
864x486 60.00
640x480 59.94
720x405 60.00
640x360 60.00
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 600mm
x 340mm
2560x1440 59.95*+
2048x1152 60.00
1920x1200 59.95
1920x1080 60.00 60.00 50.00 59.94 30.00 25.00 24.00
29.97 23.98
1920x1080i 60.00 50.00 59.94
1600x1200 60.00
1680x1050 59.88
1280x1024 75.02 60.02
1200x960 59.99
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
It is quite easy to notice the issue earlier if enabling the "Slide back"
effect for Kwin compositing.
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