Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On Mon 2007-07-09 13:55:05, Bill Davidsen wrote: > Chuck Ebbert wrote: > >On 07/06/2007 12:35 PM, Arjan van de Ven wrote: > >>>Where is the ondemand-fix.patch? I can't find any link to it. > >>just click on it in the graph ;_ > >> > >>it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which > >>is submitted already to the maintainers) > >> > > > >Ah, OK, that one just went into the latest Fedora 7 kernel. > > > All this information makes it obvious that even though upgrades are > painful (given slow laptop disks, *really* painful), it looks as if > there are major benefits to be gained. > > Thanks for sharing the information. > > As improved as USB drivers are, I assume that unloading the drivers is > still desirable if no USB hardware is in use. That should be no longer neccessary, IIRC. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On Mon 2007-07-09 13:55:05, Bill Davidsen wrote: Chuck Ebbert wrote: On 07/06/2007 12:35 PM, Arjan van de Ven wrote: Where is the ondemand-fix.patch? I can't find any link to it. just click on it in the graph ;_ it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which is submitted already to the maintainers) Ah, OK, that one just went into the latest Fedora 7 kernel. All this information makes it obvious that even though upgrades are painful (given slow laptop disks, *really* painful), it looks as if there are major benefits to be gained. Thanks for sharing the information. As improved as USB drivers are, I assume that unloading the drivers is still desirable if no USB hardware is in use. That should be no longer neccessary, IIRC. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On Mon, Jul 09, 2007 at 05:42:14PM -0400, [EMAIL PROTECTED] wrote: > On Fri, 06 Jul 2007 13:02:10 EDT, Dave Jones said: > > On Fri, Jul 06, 2007 at 09:35:24AM -0700, Arjan van de Ven wrote: > > > > > > Where is the ondemand-fix.patch? I can't find any link to it. > > > > > > just click on it in the graph ;_ > > > > > > it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch > > > (which is submitted already to the maintainers) > > > > Should be in cpufreq.git (and thus, -mm) too, waiting for .23 to open up. > > Somebody should fix http://ww.linuxpowertop.org/known.php then, it says: > > "The kernels ondemand CPU frequency management function currently has a > high-frequency timer that samples to see if the CPU is idle. Intel fixed this > and the patches to the kernel to effectively remove this timer are included > in > Linus' tree as of 2.6.22-rc1." > > which confused me no end when I was looking at this stuff and wondering why > it was in the -mm tree if Linus already picked it up. :) There were two sets of fixes to ondemand. The first round did in fact go into .22rc1 The others I deemed too late in the cycle to go into .22 (Though they have been flawless, so if there was enough demand (ha!) we could even push them to -stable once they're in mainline). Dave -- http://www.codemonkey.org.uk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On Fri, 06 Jul 2007 13:02:10 EDT, Dave Jones said: > On Fri, Jul 06, 2007 at 09:35:24AM -0700, Arjan van de Ven wrote: > > > > Where is the ondemand-fix.patch? I can't find any link to it. > > > > just click on it in the graph ;_ > > > > it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch > > (which is submitted already to the maintainers) > > Should be in cpufreq.git (and thus, -mm) too, waiting for .23 to open up. Somebody should fix http://ww.linuxpowertop.org/known.php then, it says: "The kernels ondemand CPU frequency management function currently has a high-frequency timer that samples to see if the CPU is idle. Intel fixed this and the patches to the kernel to effectively remove this timer are included in Linus' tree as of 2.6.22-rc1." which confused me no end when I was looking at this stuff and wondering why it was in the -mm tree if Linus already picked it up. :) pgpOvJzJbUGzH.pgp Description: PGP signature
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
Chuck Ebbert wrote: On 07/06/2007 12:35 PM, Arjan van de Ven wrote: Where is the ondemand-fix.patch? I can't find any link to it. just click on it in the graph ;_ it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which is submitted already to the maintainers) Ah, OK, that one just went into the latest Fedora 7 kernel. All this information makes it obvious that even though upgrades are painful (given slow laptop disks, *really* painful), it looks as if there are major benefits to be gained. Thanks for sharing the information. As improved as USB drivers are, I assume that unloading the drivers is still desirable if no USB hardware is in use. -- Bill Davidsen <[EMAIL PROTECTED]> "We have more to fear from the bungling of the incompetent than from the machinations of the wicked." - from Slashdot - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
Chuck Ebbert wrote: On 07/06/2007 12:35 PM, Arjan van de Ven wrote: Where is the ondemand-fix.patch? I can't find any link to it. just click on it in the graph ;_ it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which is submitted already to the maintainers) Ah, OK, that one just went into the latest Fedora 7 kernel. All this information makes it obvious that even though upgrades are painful (given slow laptop disks, *really* painful), it looks as if there are major benefits to be gained. Thanks for sharing the information. As improved as USB drivers are, I assume that unloading the drivers is still desirable if no USB hardware is in use. -- Bill Davidsen [EMAIL PROTECTED] We have more to fear from the bungling of the incompetent than from the machinations of the wicked. - from Slashdot - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On Fri, 06 Jul 2007 13:02:10 EDT, Dave Jones said: On Fri, Jul 06, 2007 at 09:35:24AM -0700, Arjan van de Ven wrote: Where is the ondemand-fix.patch? I can't find any link to it. just click on it in the graph ;_ it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which is submitted already to the maintainers) Should be in cpufreq.git (and thus, -mm) too, waiting for .23 to open up. Somebody should fix http://ww.linuxpowertop.org/known.php then, it says: The kernels ondemand CPU frequency management function currently has a high-frequency timer that samples to see if the CPU is idle. Intel fixed this and the patches to the kernel to effectively remove this timer are included in Linus' tree as of 2.6.22-rc1. which confused me no end when I was looking at this stuff and wondering why it was in the -mm tree if Linus already picked it up. :) pgpOvJzJbUGzH.pgp Description: PGP signature
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On Mon, Jul 09, 2007 at 05:42:14PM -0400, [EMAIL PROTECTED] wrote: On Fri, 06 Jul 2007 13:02:10 EDT, Dave Jones said: On Fri, Jul 06, 2007 at 09:35:24AM -0700, Arjan van de Ven wrote: Where is the ondemand-fix.patch? I can't find any link to it. just click on it in the graph ;_ it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which is submitted already to the maintainers) Should be in cpufreq.git (and thus, -mm) too, waiting for .23 to open up. Somebody should fix http://ww.linuxpowertop.org/known.php then, it says: The kernels ondemand CPU frequency management function currently has a high-frequency timer that samples to see if the CPU is idle. Intel fixed this and the patches to the kernel to effectively remove this timer are included in Linus' tree as of 2.6.22-rc1. which confused me no end when I was looking at this stuff and wondering why it was in the -mm tree if Linus already picked it up. :) There were two sets of fixes to ondemand. The first round did in fact go into .22rc1 The others I deemed too late in the cycle to go into .22 (Though they have been flawless, so if there was enough demand (ha!) we could even push them to -stable once they're in mainline). Dave -- http://www.codemonkey.org.uk - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On 07/06/2007 12:35 PM, Arjan van de Ven wrote: >> Where is the ondemand-fix.patch? I can't find any link to it. > > just click on it in the graph ;_ > > it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which > is submitted already to the maintainers) > Ah, OK, that one just went into the latest Fedora 7 kernel. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On Fri, Jul 06, 2007 at 09:35:24AM -0700, Arjan van de Ven wrote: > > Where is the ondemand-fix.patch? I can't find any link to it. > > just click on it in the graph ;_ > > it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch > (which is submitted already to the maintainers) Should be in cpufreq.git (and thus, -mm) too, waiting for .23 to open up. Dave -- http://www.codemonkey.org.uk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
Chuck Ebbert wrote: On 07/05/2007 03:58 PM, Arjan van de Ven wrote: While it's hard to show "one size fits all" number/percentage, we took a bog standard Lenovo T61 laptop (no vendor preference, they just were the first one to deliver a model with the latest Intel chipset to our cubes) and measured the effect. The baseline we used was a 32 bit Fedora 7 installation; note that this already has the tickless kernel, but is lacking several of the key bugfixes that came afterwards. We've put our measurements in a graph at http://ww.linuxpowertop.org/results.php With kernel fixes and features, the power consumption of this laptop went from 21.06 Watts to 18.25 Watts; with 2 additional userspace fixes the power consumption ended up at 15.5 Watts. Where is the ondemand-fix.patch? I can't find any link to it. just click on it in the graph ;_ it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which is submitted already to the maintainers) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On 07/05/2007 03:58 PM, Arjan van de Ven wrote: > While it's hard to show "one size fits all" number/percentage, we took a > bog standard Lenovo T61 laptop (no vendor preference, they just were the > first one to deliver a model with the latest Intel chipset to our cubes) > and measured the effect. The baseline we used was a 32 bit Fedora 7 > installation; note that this already has the tickless kernel, but is > lacking several of the key bugfixes that came afterwards. > > We've put our measurements in a graph at > > http://ww.linuxpowertop.org/results.php > > With kernel fixes and features, the power consumption of this laptop > went from 21.06 Watts to 18.25 Watts; with 2 additional userspace fixes > the power consumption ended up at 15.5 Watts. > Where is the ondemand-fix.patch? I can't find any link to it. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On 07/05/2007 03:58 PM, Arjan van de Ven wrote: While it's hard to show one size fits all number/percentage, we took a bog standard Lenovo T61 laptop (no vendor preference, they just were the first one to deliver a model with the latest Intel chipset to our cubes) and measured the effect. The baseline we used was a 32 bit Fedora 7 installation; note that this already has the tickless kernel, but is lacking several of the key bugfixes that came afterwards. We've put our measurements in a graph at http://ww.linuxpowertop.org/results.php With kernel fixes and features, the power consumption of this laptop went from 21.06 Watts to 18.25 Watts; with 2 additional userspace fixes the power consumption ended up at 15.5 Watts. Where is the ondemand-fix.patch? I can't find any link to it. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
Chuck Ebbert wrote: On 07/05/2007 03:58 PM, Arjan van de Ven wrote: While it's hard to show one size fits all number/percentage, we took a bog standard Lenovo T61 laptop (no vendor preference, they just were the first one to deliver a model with the latest Intel chipset to our cubes) and measured the effect. The baseline we used was a 32 bit Fedora 7 installation; note that this already has the tickless kernel, but is lacking several of the key bugfixes that came afterwards. We've put our measurements in a graph at http://ww.linuxpowertop.org/results.php With kernel fixes and features, the power consumption of this laptop went from 21.06 Watts to 18.25 Watts; with 2 additional userspace fixes the power consumption ended up at 15.5 Watts. Where is the ondemand-fix.patch? I can't find any link to it. just click on it in the graph ;_ it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which is submitted already to the maintainers) - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On Fri, Jul 06, 2007 at 09:35:24AM -0700, Arjan van de Ven wrote: Where is the ondemand-fix.patch? I can't find any link to it. just click on it in the graph ;_ it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which is submitted already to the maintainers) Should be in cpufreq.git (and thus, -mm) too, waiting for .23 to open up. Dave -- http://www.codemonkey.org.uk - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Liunx power consumption on laptops -- Enormous progress in the last few months
On 07/06/2007 12:35 PM, Arjan van de Ven wrote: Where is the ondemand-fix.patch? I can't find any link to it. just click on it in the graph ;_ it's also http://www.linuxpowertop.org/patches/ondemand-fix.patch (which is submitted already to the maintainers) Ah, OK, that one just went into the latest Fedora 7 kernel. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Liunx power consumption on laptops -- Enormous progress in the last few months
Hi, with all the tickless and other goodies going into the kernel in the last few months, there is a lot of hope that this helps Linux reduce power consumption... and the good news is that it does... once you fix some bugs and fix a bunch of userspace applications. While it's hard to show "one size fits all" number/percentage, we took a bog standard Lenovo T61 laptop (no vendor preference, they just were the first one to deliver a model with the latest Intel chipset to our cubes) and measured the effect. The baseline we used was a 32 bit Fedora 7 installation; note that this already has the tickless kernel, but is lacking several of the key bugfixes that came afterwards. We've put our measurements in a graph at http://ww.linuxpowertop.org/results.php With kernel fixes and features, the power consumption of this laptop went from 21.06 Watts to 18.25 Watts; with 2 additional userspace fixes the power consumption ended up at 15.5 Watts. (Don't worry that this is the end of it; there's more stuff in the various project pipelines, and we'll keep measuring the progress over time) All in all, personally I'm very happy to see Linux making such a huge step forward with tickless and can't wait for this step to be available in all distros and for all architectures... Greetings, Arjan van de Ven - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Liunx power consumption on laptops -- Enormous progress in the last few months
Hi, with all the tickless and other goodies going into the kernel in the last few months, there is a lot of hope that this helps Linux reduce power consumption... and the good news is that it does... once you fix some bugs and fix a bunch of userspace applications. While it's hard to show one size fits all number/percentage, we took a bog standard Lenovo T61 laptop (no vendor preference, they just were the first one to deliver a model with the latest Intel chipset to our cubes) and measured the effect. The baseline we used was a 32 bit Fedora 7 installation; note that this already has the tickless kernel, but is lacking several of the key bugfixes that came afterwards. We've put our measurements in a graph at http://ww.linuxpowertop.org/results.php With kernel fixes and features, the power consumption of this laptop went from 21.06 Watts to 18.25 Watts; with 2 additional userspace fixes the power consumption ended up at 15.5 Watts. (Don't worry that this is the end of it; there's more stuff in the various project pipelines, and we'll keep measuring the progress over time) All in all, personally I'm very happy to see Linux making such a huge step forward with tickless and can't wait for this step to be available in all distros and for all architectures... Greetings, Arjan van de Ven - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
