Messages in this thread | | | Date | Sun, 2 Sep 2007 11:40:17 -0700 | From | Arjan van de Ven <> | Subject | Re: Linux, 2.6.23-rc5, powersaving degradation, (time spend in C0 goes up after a while) |
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On Sun, 2 Sep 2007 19:40:38 +0200 Christian Leber <christian@leber.de> wrote:
> Hello, > > I have observed some oddness in the powersaving behavior in rc5 and > the rcs before and i suspect this may be scheduler related. > > After booting or resuming from drisk or ram(!) the wakeups are about > 45 per second (about 1% C0 (cpu runng)) and after > about half an hour to hours of doing nothing with the laptop besides > having a powertop in konsole the wakeups rise to about 6200 and the > cpu is running 55% of the time. > > (with rc3 this was odder, it took three time pretty exactly 43min > until this occured) > > I appended the output of powertop and the .config. > But powertop doesn't even show the reason for the wakeups, probably > they don't exist, but the power usage really goes up. > > The hardware is btw. Dell latitude d830 (intel T7300, intel wlan and > gfx) >
can you give us an lspci -vvxx of the system when it's in this "bad" state? We have a very vague suspicion on something like this, the lspci would help us a lot (this is a really rare thing that we can't really reproduce, but it has been reported a few times before) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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