Version: (using KDE 4.0.2) Installed from: Ubuntu Packages OS: Linux Plasma uses quite a lot of cpu wakeups. About a tenth of the cpu wakeups on t61. If this could be reduced, we could save considerable amount of battery-time. From Powertop: Top causes for wakeups: 18,2% ( 89,3) knotify4 : schedule_timeout (process_timeout) 12,4% ( 60,8) <interrupt> : uhci_hcd:usb3, yenta, nvidia 11,5% ( 56,4) <interrupt> : PS/2 keyboard/mouse/touchpad 10,8% ( 52,9) plasma : schedule_timeout (process_timeout) NB: Actually this is using KDE 4.0.3 packages but I could only select 4.0.2 while bugreporting
unfortunately this gives us very little useful, actionable information. * what applets were running? * what configuration were they in? * what interaction did you have with them? (given your input devices were also active, i'm guessing you weren't just letting it sit there) * what was actually causing the wakeups in plasma? (e.g. which applets, was it due to reactions to window manager updates (taskbar, pager) or the clock or ...) * what else was running on the system? if you are able to dig in and provide some or all of this information then this report can become useful. otherwise, it's a candidate for INVALID.
Couldn't confirm with plain plasma. mark as invalid. Thx, Pascal Aaron J.Seigo skrev: [bugs.kde.org quoted mail]
what was the difference between "plain plasma" and the plasma configuration you were running during your earlier powertop session?
big. Plain plasma being only a black panel and desktop without widgets. Before I had also bouncyBall and several KDE plasmoids //Pascal Aaron J.Seigo skrev: [bugs.kde.org quoted mail]
it would be interesting to track down which plasmoids were causing the wakups. It should be easy enough: add them one at a time and watch the results of powertop.
I monitor as well knotify4 wakeups and it's always around 10% (100) 29.3% (325.8) USB device 3-2 : B2C2 Broadband Rcvr USB Adpt. (B2C2, Inc.) 24.8% (275.7) <interrupt> : ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb4 8.9% ( 99.4) knotify4 : schedule_timeout (process_timeout) 7.8% ( 86.3) <interrupt> : saa7133[0], saa7133[0], nvidia 6.8% ( 76.0) kwin : schedule_timeout (process_timeout) 4.4% ( 48.5) mplayer : do_nanosleep (hrtimer_wakeup) 4.2% ( 46.9) <interrupt> : snd_ca0106 3.5% ( 38.4) konsole : schedule_timeout (process_timeout) 2.8% ( 30.7) USB device 2-1 : Microsoft Wireless Desktop Receiver 3.1A (Microsft) 1.2% ( 13.7) <interrupt> : pata_via 1.2% ( 13.0) <interrupt> : pata_pdc2027x, ndiswrapper 29.3% (325.8) USB device 3-2 : B2C2 Broadband Rcvr USB Adpt. (B2C2, Inc.) 24.8% (275.7) <interrupt> : ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb4 8.9% ( 99.4) knotify4 : schedule_timeout (process_timeout) 7.8% ( 86.3) <interrupt> : saa7133[0], saa7133[0], nvidia 6.8% ( 76.0) kwin : schedule_timeout (process_timeout) 4.4% ( 48.5) mplayer : do_nanosleep (hrtimer_wakeup) 4.2% ( 46.9) <interrupt> : snd_ca0106 3.5% ( 38.4) konsole : schedule_timeout (process_timeout) 2.8% ( 30.7) USB device 2-1 : Microsoft Wireless Desktop Receiver 3.1A (Microsft) 1.2% ( 13.7) <interrupt> : pata_via 1.2% ( 13.0) <interrupt> : pata_pdc2027x, ndiswrapper The above results from powertop is with plasma not running. They do not change if i run plasma. I have only one plasmoid on desktop (folder view)
great.