[Bug 13610] Re: Use 'ondemand' cpufreq governor
No, for modern CPUs the power difference between being idle and executing instructions is greater than the amount saved by reducing the frequency of the processor. It generally makes sense to run as fast as possible in order to return to idle faster. -- Use 'ondemand' cpufreq governor https://bugs.launchpad.net/bugs/13610 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 13610] Re: Use 'ondemand' cpufreq governor
I've heard a lot of reports of horrid battery life in Ubuntu compared to Windows XP. Isn't defaulting to ondemand when unplugged the issue? Correct me if I'm wrong, but I thought the default settings in Windows XP are ondemand when on AC and powersave when unplugged. ondemand is extremely sensitive to CPU usage, so basically, as long as the computer isn't completely idle, the CPU will run at max speed, even when doing mundane stuff like browsing the web or doing word processing. That eats up your battery life extremely quickly. I am running an old Pentium M 1.8 GHz that throttles to 600 MHz on powersave. I have no issues whatsoever playing videos (even H.264 video) and music without skipping in Windows XP. Thus, I strongly suggest Ubuntu default to powersave mode when a laptop is unplugged. If that is unacceptable, at least use conservative. As it is, laptop users who don't know how to manually change the governor setting will likely shy away from Ubuntu due to short battery life. -- Use 'ondemand' cpufreq governor https://bugs.launchpad.net/bugs/13610 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 13610] Re: Use 'ondemand' cpufreq governor [but not always]
I just got aware that powernowd isn't used anymore. I always used '-m 2' like Kai and would prefer 'conservative' governor. But the only way to change it, is to edit the init-script. That's not a big issue but it's not the clean way. I would prefer to set an option in /etc/default/powernowd to select a governor or the powernowd deamon. For now I edit my script. But it's so simple, please package it. -- Use 'ondemand' cpufreq governor https://launchpad.net/bugs/13610 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 13610] Re: Use 'ondemand' cpufreq governor
Loom: yup, I think there's a bug somewhere for move the initscript currently in 'powernowd' to a new package with a proper /etc/default/foo configuration. Could you open a new bug for that if you can't find it. -- Use 'ondemand' cpufreq governor https://launchpad.net/bugs/13610 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 13610] Re: Use 'ondemand' cpufreq governor
powernowd (0.97-1ubuntu5) edgy; urgency=low * Use ondemand if possible * Switch back to performance if powernowd is stopped -- Matthew Garrett [EMAIL PROTECTED] Tue, 5 Sep 2006 14:13:11 +0100 ** Changed in: gnome-power-manager (Ubuntu) Sourcepackagename: gnome-power-manager = powernowd -- Use 'ondemand' cpufreq governor https://launchpad.net/bugs/13610 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 13610] Re: Use 'ondemand' cpufreq governor
Support for cpufreq scaling is present in g-p-m CVS head. -- Use 'ondemand' cpufreq governor https://launchpad.net/bugs/13610 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 13610] Re: Use 'ondemand' cpufreq governor
We now use ondemand on hardware that supports it. ** Changed in: gnome-power-manager (Ubuntu) Status: Unconfirmed = Fix Released -- Use 'ondemand' cpufreq governor https://launchpad.net/bugs/13610 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 13610] Re: Use 'ondemand' cpufreq governor
Now this is happening in the HAL layer thanks to Holger Macht, this is something that will be configurable in gnome-power-manager really soon. Watch my blog for progress. -- Use 'ondemand' cpufreq governor https://launchpad.net/bugs/13610 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
