I just did some experimentation to reduce kwin-induced wakeups.
Initially, I was seeing around 50-60 wakeups per sec due to kwin. By
turning off the 'Track Mouse' effect, I now see around 11 per sec.
Using jaunty here, with uxa accelleration.
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powertop shows kwin generating lots of wakeups
I'm still seeing this issue under Jaunty with an intel chipset. kwin
causes ~50 wakeups/sec.
I'm gonna try a clean install of the new alpha (currently, I've
installed kubuntu-desktop on top of an ubuntu installation), and if the
problem persists, I'd like this bug re-opened.
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powertop shows
Closing as fix released then (current jaunty: KDE 4.2 beta2).
Thanks Martin.
** Changed in: kdebase (Ubuntu)
Status: Confirmed = Fix Released
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powertop shows kwin generating lots of wakeups (intrepid, kde4)
https://bugs.launchpad.net/bugs/283100
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On Monday 05 January 2009 14:04:04 Martin Gräßlin wrote:
The problem of too many wakeups is solved in KDE 4.2 being released this
month. KWin will be idle and don't wake up if nothing has to be painted.
I just did the test and KWin is at about 8 wakeups per second when being
idle.
Awesome!
The problem of too many wakeups is solved in KDE 4.2 being released this
month. KWin will be idle and don't wake up if nothing has to be painted.
I just did the test and KWin is at about 8 wakeups per second when being
idle.
Nevertheless my nvidia binary blob is still responsible for 60 wakeups
Hardy had KDE 3's Kwin and that didn't have desktop effects.
Subscribing Martin Gräßlin (upstream dev) maybe he can enlighten us :)
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powertop shows kwin generating lots of wakeups (intrepid, kde4)
https://bugs.launchpad.net/bugs/283100
You received this bug notification because you are a
This does not look like an invalid bug. It might be wontfix, but since
Julian said that hardy behaved much better, it does look like a
regression and a real bug.
Feel free to close as wontfix again, of course, but this does look
relevant for power management.
** Changed in: kdebase (Ubuntu)
Ok so I turned on show paint and show fps
First observation: If I change the screen's refresh rate, I see the
corresponding change in both the fps shown by kwin *and* the
wakeups/second.
Second observation: If I don't touch the mouse and have a static screen,
nothing is apparently getting
Ok, let me put it this way. Do you really expect that playing Quake is
not going to raise the wakeup time? Desktop effects are basically the
same, just less wakeupish.
And I also have an intel chip.
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powertop shows kwin generating lots of wakeups (intrepid, kde4)
We just did a measurement:
with desktop effects:
4.2% ( 43.1) kwin
without desktop effects:
0.2% ( 0.3) kwin
We learn: turn off your desktop effects (which will be configurable in
Kubuntu 9.04, which is coming with an advanced power manager, also the
wakeups in knotify4
I don't understand why you've marked this invalid. Is the presence of
desktop effects supposed to excuse the high number of wake-ups? That's
not a valid reason.
Regarding your driver, is it nvidia, configured with on-demand
interrupts? Intel doesn't have that luxury AFAIK.
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powertop shows
Turn on the Show Paint effect, it will show which areas are drawn. You
will notice that there is no unnecessary drawing happening.
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powertop shows kwin generating lots of wakeups (intrepid, kde4)
https://bugs.launchpad.net/bugs/283100
You received this bug notification because you are a member
On Tuesday 14 October 2008 12:44:32 Harald Sitter wrote:
Ok, let me put it this way. Do you really expect that playing Quake is
not going to raise the wakeup time? Desktop effects are basically the
same, just less wakeupish.
If it's sat there doing nothing, I don't expect it to keep re-drawing
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