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#1 2016-05-30 12:01:32

megabrain
Member
Registered: 2008-09-12
Posts: 16

Plasmashell eating 100% cpu

Hi guys

last time constantly have problem with plasmashell. it became unusable  without any reason after short period of time (5-30 minutes randomly).
only kill and restart helps

i have read tons of messages here and in google and still cant apply those solutions to me

i dont have any active widgets (except defaults), only icons. baloo is disables in kde control center
nothing interesting in logs ( journal -f and .xsession-errors )

iotop shows no agressive activity (nothing i can link to)

default desktop theme and widgets style

only kde-connect was installed but problem started to appear before this package


asking community for advise on how to catch this @bug@
(i dont wont back from testing, kinda like this bomb game)

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#2 2016-05-30 12:33:51

desaparecido
Member
From: Liège, Belgium
Registered: 2010-03-14
Posts: 155

Re: Plasmashell eating 100% cpu

hi, I use git version so I don't have the same version than you but I the past I have a similar issue (Is not about widgets in the desktop bug, you don't have widgets) in my case was a graphics drivers related.  I you give us more information about your system could be easy to help you (or try at least), like plasma version, graphic card, video drivers, etc.  You can try to change rendering backend and/or opengl interface (glx or egl).  And another thing, actually there's no KDE package in [testing] repo so I don't know if is here the better place to post you question, probably could be better in Desktop Environments


KF5 & Plasma5 (git versions) - Awesome WM
ASUS Sabertooth 990FX - AMD FX8350 - ATI Radeon HD 7970
[testing] repo

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#3 2016-05-30 13:18:49

miku84
Member
Registered: 2015-03-31
Posts: 45

Re: Plasmashell eating 100% cpu

It is possible due to this bug.

https://bugs.kde.org/show_bug.cgi?id=356479

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#4 2016-06-06 08:42:14

megabrain
Member
Registered: 2008-09-12
Posts: 16

Re: Plasmashell eating 100% cpu

miku84 wrote:

It is possible due to this bug.

https://bugs.kde.org/show_bug.cgi?id=356479

i've disabled animation. but plasmashell still hitting my cpu hard. especially on startup

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#5 2016-09-23 21:37:00

newsboost
Member
Registered: 2016-07-24
Posts: 157

Re: Plasmashell eating 100% cpu

Hi,

I think I have exactly this problem also... Plasmashell uses 100% cpu on one of my 4 cores, and the bottom taskbar becomes un-responsive for maybe 15 seconds... Very very frustrating... I found the PID and opened gdb and "attach (PID)" give this:

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
0x00007f2287750a71 in KSGRD::SensorAgent::sendRequest(QString const&, KSGRD::SensorClient*, int) () from /usr/lib/libksgrd.so.7
(gdb) bt
#0  0x00007f2287750a71 in KSGRD::SensorAgent::sendRequest(QString const&, KSGRD::SensorClient*, int) () from /usr/lib/libksgrd.so.7
#1  0x00007f2287751c88 in KSGRD::SensorManager::sendRequest(QString const&, QString const&, KSGRD::SensorClient*, int) () from /usr/lib/libksgrd.so.7
#2  0x00007f228796e06a in ?? () from /usr/lib/qt/plugins/plasma/dataengine/plasma_engine_systemmonitor.so
#3  0x00007f2287750576 in KSGRD::SensorAgent::processAnswer(char const*, int) () from /usr/lib/libksgrd.so.7
#4  0x00007f22877582b4 in ?? () from /usr/lib/libksgrd.so.7
#5  0x00007f23396f385e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#6  0x00007f2339602b68 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007f2339602fb0 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f23396f34e9 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#9  0x00007f233976dc6e in QSocketNotifier::activated(int, QSocketNotifier::QPrivateSignal) () from /usr/lib/libQt5Core.so.5
#10 0x00007f2339700192 in QSocketNotifier::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#11 0x00007f233a63ce3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#12 0x00007f233a6445b1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#13 0x00007f23396c7c80 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#14 0x00007f233971ca2d in ?? () from /usr/lib/libQt5Core.so.5
#15 0x00007f233406ae67 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0x00007f233406b0d0 in ?? () from /usr/lib/libglib-2.0.so.0
#17 0x00007f233406b17c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#18 0x00007f233971c57f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#19 0x00007f23396c60da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#20 0x00007f23396ce5cc in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#21 0x000000000041b54d in ?? ()
#22 0x00007f2338d39291 in __libc_start_main () from /usr/lib/libc.so.6
#23 0x000000000041b8ca in _start ()
(gdb) exit

If anyone can explain it - or maybe provide a solution, I would be really happy... I'm using AMD A10-6800B APU with Radeon(tm) HD Graphics - I believe specifically, graphics is AMD/ATI Richland [Radeon HD 8670D]... I'll subscribe here, in case anyone knows the solution...

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