Plasma 5.10.2 KDE frameworks 5.34.0 Qt 5.9.0 When "Show Seconds" is enabled there is a significant increase in CPU utilisation by kwin_X11 As shown by "Top" (observed when idle over approximately two minutes) Show Seconds disabled - kwin_X11 approx 7% to 8% utilisation Show Seconds enabled - kwin_X11 approx 13% to 22% utilisation
Is there a difference with composition enabled vs. compositing disabled?
Please use the show paint effect to see what repaints. If there is constant flickering in the panel we need to reassign to Plasma.
(In reply to Christoph Feck from comment #1) > Is there a difference with composition enabled vs. compositing disabled? Yes. With compositing disabled (alt-shift-f12) CPU utilisation by kwin_X11 drops to < 1.0% There appears no noticeable difference when Show Seconds is enabled.
(In reply to Martin Flöser from comment #2) > Please use the show paint effect to see what repaints. If there is constant > flickering in the panel we need to reassign to Plasma. The panel repaints only at 1 sec intervals as the time updates.
please provide the output of qdbus org.kde.KWin /KWin supportInformation
This is with the normal configuration used on this machine, apart from Digital clock temporarily has "Show Seconds" disabled. KWin Support Information: ========================= Version ======= KWin version: 5.10.2 Qt Version: 5.9.0 Qt compile version: 5.9.0 XCB compile version: 1.12 Operation Mode: X11 only Build Options ============= KWIN_BUILD_DECORATIONS: yes KWIN_BUILD_TABBOX: yes KWIN_BUILD_ACTIVITIES: yes HAVE_INPUT: yes HAVE_DRM: yes HAVE_GBM: yes HAVE_X11_XCB: yes HAVE_EPOXY_GLX: yes HAVE_WAYLAND_EGL: yes X11 === Vendor: The X.Org Foundation Vendor Release: 11903000 Protocol Version/Revision: 11/0 SHAPE: yes; Version: 0x11 RANDR: yes; Version: 0x14 DAMAGE: yes; Version: 0x11 Composite: yes; Version: 0x4 RENDER: yes; Version: 0xb XFIXES: yes; Version: 0x50 SYNC: yes; Version: 0x31 GLX: yes; Version: 0x0 Decoration ========== Plugin: org.kde.oxygen Theme: Blur: 0 onAllDesktopsAvailable: false alphaChannelSupported: true closeOnDoubleClickOnMenu: false decorationButtonsLeft: 5, 3, 4, 7 decorationButtonsRight: 9, 6 borderSize: 2 gridUnit: 8 font: Ubuntu,9,-1,5,50,0,0,0,0,0 smallSpacing: 2 largeSpacing: 8 Options ======= focusPolicy: 0 nextFocusPrefersMouse: false clickRaise: true autoRaise: false autoRaiseInterval: 0 delayFocusInterval: 0 shadeHover: false shadeHoverInterval: 250 separateScreenFocus: false placement: 7 focusPolicyIsReasonable: true borderSnapZone: 0 windowSnapZone: 8 centerSnapZone: 0 snapOnlyWhenOverlapping: false rollOverDesktops: true focusStealingPreventionLevel: 1 legacyFullscreenSupport: false operationTitlebarDblClick: 5000 operationMaxButtonLeftClick: 5000 operationMaxButtonMiddleClick: 5015 operationMaxButtonRightClick: 5014 commandActiveTitlebar1: 0 commandActiveTitlebar2: 30 commandActiveTitlebar3: 2 commandInactiveTitlebar1: 4 commandInactiveTitlebar2: 30 commandInactiveTitlebar3: 2 commandWindow1: 7 commandWindow2: 8 commandWindow3: 8 commandWindowWheel: 31 commandAll1: 10 commandAll2: 3 commandAll3: 14 keyCmdAllModKey: 16777251 showGeometryTip: false condensedTitle: false electricBorderMaximize: false electricBorderTiling: false electricBorderCornerRatio: 0.25 borderlessMaximizedWindows: false killPingTimeout: 5000 hideUtilityWindowsForInactive: true inactiveTabsSkipTaskbar: false autogroupSimilarWindows: false autogroupInForeground: true compositingMode: 1 useCompositing: true compositingInitialized: true hiddenPreviews: 1 glSmoothScale: 2 xrenderSmoothScale: false maxFpsInterval: 16666666 refreshRate: 0 vBlankTime: 6000000 glStrictBinding: true glStrictBindingFollowsDriver: true glCoreProfile: false glPreferBufferSwap: 101 glPlatformInterface: 1 windowsBlockCompositing: true Screen Edges ============ desktopSwitching: false desktopSwitchingMovingClients: false cursorPushBackDistance: 1x1 timeThreshold: 150 reActivateThreshold: 350 actionTopLeft: 0 actionTop: 0 actionTopRight: 0 actionRight: 0 actionBottomRight: 0 actionBottom: 0 actionBottomLeft: 0 actionLeft: 0 Screens ======= Multi-Head: no Active screen follows mouse: no Number of Screens: 1 Screen 0: --------- Name: DVI-I-1 Geometry: 0,0,1920x1200 Refresh Rate: 59.9502 Compositing =========== Compositing is active Compositing Type: OpenGL OpenGL vendor string: VMware, Inc. OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 4.0, 128 bits) OpenGL version string: 3.0 Mesa 17.1.3 OpenGL platform interface: GLX OpenGL shading language version string: 1.30 Driver: LLVMpipe GPU class: Unknown OpenGL version: 3.0 GLSL version: 1.30 Mesa version: 17.1.3 X server version: 1.19.3 Linux kernel version: 4.11.6 Direct rendering: Requires strict binding: yes GLSL shaders: yes Texture NPOT support: yes Virtual Machine: no OpenGL 2 Shaders are used Painting blocks for vertical retrace: no Loaded Effects: --------------- screenshot diminactive colorpicker highlightwindow startupfeedback kscreen Currently Active Effects: ------------------------- diminactive Effect Settings: ---------------- screenshot: diminactive: dimPanels: false dimDesktop: false dimKeepAbove: false dimByGroup: true dimStrength: 10 colorpicker: highlightwindow: startupfeedback: type: 1 kscreen: Additionally, (probably irrelevant) I have: [Units] longDuration=5 in plasmarc (to effectively disable plasma animations)
> OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 4.0, 128 bits) You don't have any hardware driver installed. This is the software emulation driver. It is expected that this one requires more CPU. The only way to fix it is to install proper drivers for your system.
(In reply to Martin Flöser from comment #7) > The only way to fix it is to install proper drivers for your system. Could you please elaborate on that? I'm currently using the nouveau oss driver, do you mean I should use the proprietary nvidia driver instead?
Apologies, please ignore my comment #8 Mesa-dri-nouveau was not installed. This is a separate package on openSUSE as it is regarded as experimental. Thanks for your time.