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Saundersx
Apprentice
Joined: 11 Apr 2005
Posts: 290
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 Posted: Tue Jun 02, 2015 7:00 pm Post subject: plasma-desktop slow memory leak |
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plasma-desktop has a slow memory leak that just recently started happening. I noticed it right after an update but unfortunately also right after a power failure. This is a known issue ( https://bugs.kde.org/buglist.cgi?quicksearch=plasma%20memory%20leak ) but one that didn't affect me until recently.
Now the memory leak isn't a big issue, I have lot of memory and it only gobbles a few gigs after a few hours. But what is annoying is that it's a noticable cpu hit and also makes the desktop slow. Mainly anything controlled by plasma-desktop which includes any widgets and annoying enough the taskbar.
Has any one else experienced this or better yet fixed it? This is a known issue so I know I'm not crazy but the the timing is convienant. |
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davidm
Guru
Joined: 26 Apr 2009
Posts: 557
Location: US
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| Posted: Tue Jun 02, 2015 10:55 pm Post subject: |
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Yes I am running kde-plasma/plasma-desktop-5.3.1 and I also noticed it:
https://forums.gentoo.org/viewtopic-t-1015002-start-75.html
The problem seems much worse with some of the cpu/memory/disk IO plasmoids.
Right now I am running the system load viewer plasmoid (with memory, cpu, and swap usage), the yahoo weather plasmoid, calculator plasmoid, analog clock, and post-it notes plasmoid. plasmashell is using 2.2GB of RAM at present but only about 4% cpu.
| Quote: |
# uptime
18:53:05 up 1 day, 23:57, 3 users, load average: 0.34, 0.58, 0.66
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Some of the plasmoids, particularly some of the other monitoring plasmoids eat CPU like crazy. So if that is bothering you you may want to experiment with different plasmoids. Under my configuration I haven't noticed cpu usage being an issue. I just have a modest Core2 quad.
Edit: This seems to be the main bug for the memory leak but there is also a reply about the cpu usage:
https://bugs.kde.org/show_bug.cgi?id=344879 |
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Saundersx
Apprentice
Joined: 11 Apr 2005
Posts: 290
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| Posted: Sun Jun 07, 2015 10:49 pm Post subject: |
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Found the workaround solution thanks to this https://bugs.kde.org/show_bug.cgi?id=344879 posted previously. Rolling back Qt a version was the trick.
| Code: | emerge -av1 \
=dev-qt/designer-4.8.6-r1 \
=dev-qt/qt3support-4.8.6-r1 \
=dev-qt/qtcore-4.8.6-r2 \
=dev-qt/qtdbus-4.8.6-r1 \
=dev-qt/qtdeclarative-4.8.6-r1 \
=dev-qt/qtgui-4.8.6-r4 \
=dev-qt/qtmultimedia-4.8.6-r1 \
=dev-qt/qtopengl-4.8.6-r1 \
=dev-qt/qtscript-4.8.6-r2 \
=dev-qt/qtsql-4.8.6-r1 \
=dev-qt/qtsvg-4.8.6-r1 \
=dev-qt/qttest-4.8.6-r1 \
=dev-qt/qttranslations-4.8.6-r1 \
=dev-qt/qtwebkit-4.8.6-r1 \
=dev-qt/qtxmlpatterns-4.8.6-r1 |
No more gradual slowdowns or gigs of gobbled memory after a few hours. For me personally the canary in the coalmine was garbageware/spyware Skype, it dragged almost unusuably even after a fresh reboot. |
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mrsaccess
n00b
Joined: 03 Sep 2005
Posts: 30
Location: Greece
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| Posted: Sun Jun 14, 2015 11:07 am Post subject: |
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Thank you, this was a life-saving post! Maybe qt 4.8.7 should be masked until this is fixed.
I masked it like this:
| Code: | =dev-qt/assistant-4.8.7
=dev-qt/designer-4.8.7
=dev-qt/linguist-4.8.7
=dev-qt/qt3support-4.8.7
=dev-qt/qtcore-4.8.7
=dev-qt/qtdbus-4.8.7
=dev-qt/qtdeclarative-4.8.7
=dev-qt/qtgui-4.8.7
=dev-qt/qthelp-4.8.7
=dev-qt/qtmultimedia-4.8.7
=dev-qt/qtopengl-4.8.7
=dev-qt/qtscript-4.8.7
=dev-qt/qtsql-4.8.7
=dev-qt/qtsvg-4.8.7
=dev-qt/qttest-4.8.7
=dev-qt/qttranslations-4.8.7
=dev-qt/qtwebkit-4.8.7
=dev-qt/qtxmlpatterns-4.8.7
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Hardware: The parts of your pc you can kick. |
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xming
Guru
Joined: 02 Jul 2002
Posts: 441
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| Posted: Mon Jun 22, 2015 9:12 am Post subject: |
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unbelievable, plasma-desktop was using almost 4GB after a few days, now it's less than 100MB, will see if it stays this way.
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http://wojia.be |
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