Bug#844707: plasma-workspace: plasmadesktop - excessive cpu usage, slow desktop operation
Package: plasma-workspace
Version: 4:5.8.2-1
Severity: important
plasmashell consumes excessive CPU, increases over time.
Possibly I'm hitting a couple of bugs here, but I'm not sure...
plasmashell starts by stat()ing about 40000 files per second, and
consuming 50% of one CPU core. CPU then climbs to around 110% of one
core, and the stat() rate (under strace) falls to about 30000 per second.
This is 10 seconds of strace output from a freshly started plasmashell:
http://buttersideup.com/plasmashell-debug/plasmashell-highcpu-strace-fresh
and a summary output taken afterwards:
http://buttersideup.com/plasmashell-debug/plasmashell-highcpu-strace-fresh-summary
These two are for processes that have been running longer, and have
climbed to >100% usage:
http://buttersideup.com/plasmashell-debug/plasmashell-highcpu-strace
http://buttersideup.com/plasmashell-debug/plasmashell-highcpu-strace-summary
Tim.
-- System Information:
Debian Release: stretch/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.8.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages plasma-workspace depends on:
ii dbus-x11 1.10.12-1
ii frameworkintegration 5.27.0-1
iu gdb 7.11.1-2+b1
ii iso-codes 3.70-1
ii kactivitymanagerd 5.8.2-1
ii kde-cli-tools 4:5.8.2-1
ii kded5 5.27.0-1
ii kinit 5.27.0-1
ii kio 5.27.0-2
ii kpackagetool5 5.27.0-1
ii libc6 2.24-5
ii libcln6 1.3.4-2
ii libdbusmenu-qt5-2 0.9.3+16.04.20160218-1
ii libgcc1 1:6.2.0-13
ii libgps22 3.16-4
ii libice6 2:1.0.9-1+b1
ii libkf5activities5 5.27.0-1
ii libkf5auth5 5.27.0-1
ii libkf5baloo5 5.27.0-1
ii libkf5bookmarks5 5.27.0-1
ii libkf5calendarevents5 5.27.0-1+b1
ii libkf5completion5 5.27.0-1
ii libkf5configcore5 5.27.0-1
ii libkf5configgui5 5.27.0-1
ii libkf5configwidgets5 5.27.0-1
ii libkf5coreaddons5 5.27.0-1
ii libkf5crash5 5.27.0-1
ii libkf5dbusaddons5 5.27.0-1
ii libkf5declarative5 5.27.0-1+b1
ii libkf5globalaccel-bin 5.27.0-1
ii libkf5globalaccel5 5.27.0-1
ii libkf5guiaddons5 5.27.0-1
ii libkf5holidays5 16.04.2-1
ii libkf5i18n5 5.27.0-2
ii libkf5iconthemes5 5.27.0-1
ii libkf5idletime5 5.27.0-1
ii libkf5itemviews5 5.27.0-1
ii libkf5jobwidgets5 5.27.0-1
ii libkf5js5 5.27.0-1
ii libkf5jsembed5 5.27.0-1
ii libkf5kdelibs4support5 5.27.0-1
ii libkf5kiocore5 5.27.0-2
ii libkf5kiofilewidgets5 5.27.0-2
ii libkf5kiowidgets5 5.27.0-2
ii libkf5networkmanagerqt6 5.27.0-1
ii libkf5newstuff5 5.27.0-1
ii libkf5notifications5 5.27.0-1
ii libkf5notifyconfig5 5.27.0-1
ii libkf5package5 5.27.0-1
ii libkf5plasma5 5.27.0-1
ii libkf5plasmaquick5 5.27.0-1
ii libkf5quickaddons5 5.27.0-1+b1
ii libkf5runner5 5.27.0-1
ii libkf5service-bin 5.27.0-1
ii libkf5service5 5.27.0-1
ii libkf5solid5 5.27.0-1
ii libkf5texteditor5 5.27.0-1
ii libkf5textwidgets5 5.27.0-1
ii libkf5wallet-bin 5.27.0-1
ii libkf5wallet5 5.27.0-1
ii libkf5waylandclient5 4:5.27.0-1
ii libkf5widgetsaddons5 5.27.0-1
ii libkf5windowsystem5 5.27.0-1
ii libkf5xmlgui5 5.27.0-1
ii libkf5xmlrpcclient5 5.27.0-1
ii libkscreenlocker5 5.8.2-1
ii libksgrd7 4:5.8.2-1
ii libkworkspace5-5 4:5.8.2-1
ii libphonon4qt5-4 4:4.9.0-4
ii libplasma-geolocation-interface5 4:5.8.2-1
ii libprocesscore7 4:5.8.2-1
ii libprocessui7 4:5.8.2-1
ii libqalculate5v5 0.9.7-9.2
ii libqt5core5a 5.7.1~20161021+dfsg-5
ii libqt5dbus5 5.7.1~20161021+dfsg-5
ii libqt5gui5 5.7.1~20161021+dfsg-5
ii libqt5network5 5.7.1~20161021+dfsg-5
ii libqt5qml5 5.7.1~20161021-5
ii libqt5quick5 5.7.1~20161021-5
ii libqt5script5 5.7.1~20161021+dfsg-2
ii libqt5sql5 5.7.1~20161021+dfsg-5
ii libqt5widgets5 5.7.1~20161021+dfsg-5
ii libqt5x11extras5 5.7.1~20161021-2
ii libqt5xml5 5.7.1~20161021+dfsg-5
ii libsm6 2:1.2.2-1+b1
ii libstdc++6 6.2.0-13
ii libtaskmanager6 4:5.8.2-1
ii libweather-ion7 4:5.8.2-1
ii libx11-6 2:1.6.3-1
ii libxcb-composite0 1.12-1
ii libxcb-damage0 1.12-1
ii libxcb-image0 0.4.0-1
ii libxcb-util0 0.3.8-3
ii libxcb1 1.12-1
ii libxfixes3 1:5.0.2-1
ii libxrender1 1:0.9.9-2
ii milou 4:5.8.2-1
ii phonon4qt5 4:4.9.0-4
ii plasma-framework 5.27.0-1
ii plasma-integration 5.8.2-1+b1
ii qdbus-qt5 5.7.1~20161021-2
ii qml-module-org-kde-draganddrop 5.27.0-1+b1
ii qml-module-org-kde-extensionplugin 5.27.0-1
ii qml-module-org-kde-kcoreaddons 5.27.0-1+b1
ii qml-module-org-kde-kquickcontrols 5.27.0-1+b1
ii qml-module-org-kde-kquickcontrolsaddons 5.27.0-1+b1
ii qml-module-org-kde-kwindowsystem 5.27.0-1+b1
ii qml-module-org-kde-solid 5.27.0-1
ii qml-module-qt-labs-folderlistmodel 5.7.1~20161021-5
ii qml-module-qtgraphicaleffects 5.7.1~20161021-3
ii qml-module-qtqml-models2 5.7.1~20161021-5
ii qml-module-qtquick-controls 5.7.1~20161021-2
ii qml-module-qtquick-dialogs 5.7.1~20161021-2
ii qml-module-qtquick-layouts 5.7.1~20161021-5
ii qml-module-qtquick-window2 5.7.1~20161021-5
ii qml-module-qtquick2 5.7.1~20161021-5
ii qttools5-dev-tools 5.7.1~20161021-2
ii udisks2 2.1.7-3
ii x11-utils 7.7+3
ii x11-xserver-utils 7.7+7
ii zlib1g 1:1.2.8.dfsg-2+b3
Versions of packages plasma-workspace recommends:
ii kio-extras 4:16.08.2-1
ii libpam-kwallet5 5.8.2-1
plasma-workspace suggests no packages.
-- debconf-show failed
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