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EyeOfCat
n00b
Joined: 27 Jan 2011
Posts: 8
Location: Saint-Petersbourg,Ru
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 Posted: Thu Jan 27, 2011 7:32 am Post subject: update decreased battery life |
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yesterday I started emerge -NuDav world and it installed some packages:
timezone-data;acpid;URI;xf86driproto;live-2011.01.24;libXi;xinit;sip;cython;phonon;phonon-gstreamer(N);git;eselect-opengl;
PyQt;libcap;gnome-doc-utils;gtk-doc(N);xorg-server;polkit;polkit-kde;polkit-qt(тоже вроде оба новые);openssh;
hplip;wine;networkmanager;libsdl;phonon-kde;
when I run
/bin/grep rate /proc/acpi/battery/BAT0/state | cut -d : -f2
got ~15000 instead of typical ~9800
this consume my asus u35j battery life by 2 hrs. Now it says ~5 hrs instead of ~7 hrs.
At morning I downgraded xorg-server,acpid,eselect,xf86driproto - no result
what happened to it? |
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Shining Arcanine
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Joined: 24 Sep 2009
Posts: 1110
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| Posted: Thu Jan 27, 2011 8:29 am Post subject: |
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| Are you sure that the measurements were taken before and after the updates? It is probably something else that is doing it, like a kernel upgrade. |
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EyeOfCat
n00b
Joined: 27 Jan 2011
Posts: 8
Location: Saint-Petersbourg,Ru
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| Posted: Thu Jan 27, 2011 8:46 am Post subject: |
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| yes.i'm sure. i set hdparm to -B 255 and spend one hour monitoring bato state. then i ran update and end up with this problem . before you ask changing hdparm and switching it off made no results |
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Shining Arcanine
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Joined: 24 Sep 2009
Posts: 1110
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| Posted: Thu Jan 27, 2011 2:31 pm Post subject: |
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| Some volatile setting might have been changed by the upgrade. Have you tried rebooting? |
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EyeOfCat
n00b
Joined: 27 Jan 2011
Posts: 8
Location: Saint-Petersbourg,Ru
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| Posted: Thu Jan 27, 2011 2:53 pm Post subject: |
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I always testing any major services updates with reboot... here xorg was updated, I almost have to test it)!
and .. I'm lazy, and haven't yet configure hybernate or suspend to RAM, so laptop reboots often. |
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Shining Arcanine
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Joined: 24 Sep 2009
Posts: 1110
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| Posted: Thu Jan 27, 2011 3:31 pm Post subject: |
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| EyeOfCat wrote: | I always testing any major services updates with reboot... here xorg was updated, I almost have to test it)!
and .. I'm lazy, and haven't yet configure hybernate or suspend to RAM, so laptop reboots often. |
Try installing powertop and see what it says. |
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EyeOfCat
n00b
Joined: 27 Jan 2011
Posts: 8
Location: Saint-Petersbourg,Ru
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| Posted: Thu Jan 27, 2011 8:52 pm Post subject: |
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it seems I got a known "kernel scheduler load balancing tick"(like this]) powertop shows handreds wakeups on it ...~600 and more
BUT! although I don't know powertop output before my problem started, I guess it wasn't so high!
and I think ...my kernel wasn't recompiled, so this issue is made by some settings? but lots of people say it's kernel bug. |
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Shining Arcanine
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Joined: 24 Sep 2009
Posts: 1110
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| Posted: Fri Jan 28, 2011 7:42 am Post subject: |
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| EyeOfCat wrote: | it seems I got a known "kernel scheduler load balancing tick"(like this]) powertop shows handreds wakeups on it ...~600 and more
BUT! although I don't know powertop output before my problem started, I guess it wasn't so high!
and I think ...my kernel wasn't recompiled, so this issue is made by some settings? but lots of people say it's kernel bug. |
You might want to ask in #gentoo on freenode. I really wouldn't know how to advise you on this. I think that is likely the issue, although I do not know how your battery life was good before. I can say that this likely had nothing to do with the updates. |
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