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Using PowerTOP 2.6 Saves Power, Extends Battery Life On Ubuntu 14.04

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  • Using PowerTOP 2.6 Saves Power, Extends Battery Life On Ubuntu 14.04

    Phoronix: Using PowerTOP 2.6 Saves Power, Extends Battery Life On Ubuntu 14.04

    With the release of Intel's PowerTOP 2.6 a few days ago I have done some benchmarking using an ASUS Zenbook Prime ultrabook to see the impact of the power consumption while running on battery for a clean, stock install of Ubuntu 14.04 LTS 64-bit and then did the same tests again after having PowerTOP 2.6 optimize the system so it's in a good power standing. Beyond testing the stock Linux 3.13 kernel, then I carried out the same tests again when using the Linux 3.15 kernel in its very latest development state.

    http://www.phoronix.com/vr.php?view=20437

  • stqn
    replied
    Originally posted by AnAkIn View Post
    It might be a bad idea to enable some of the settings. On my laptop:
    - Intel HDA powersave causes an annoying "clicking" sound from speakers
    - USB powersave causes my mouse to stop working every 30 seconds
    Also powertop recommends enabling powersaving for my wifi card, but doing so makes the connection unstable and spams the system log with errors.

    Leave a comment:


  • Morpheus
    replied
    a bit off-topic, but does anyone know how to keep the parameters modified by powertop between reboots ? I don't reboot that frequently (I'm on Manjaro), but I would have to get powertop automatically set the settings I want.

    Leave a comment:


  • curaga
    replied
    Powertop changes kernel default settings, which are decided by your distro.

    Leave a comment:


  • Kostas
    replied
    Originally posted by Ericg View Post
    1) Don't use LaptopModeTools, its pretty much been abandoned. Everyone's moving/moved over to TLP.
    2) You're supposed to be TLP + PowerTop together, not just one or the other.
    Which begs the question, which parts of the stack are to blame for users needing to install those 2 rather than have things working automatically ?

    Leave a comment:


  • AnAkIn
    replied
    Originally posted by ext73 View Post
    Try my kernels nad APM [instal NeteXt'73] - I resolved this problems

    netext73.pl
    Then it might be a good idea to send patches upstream if you solved them

    Leave a comment:


  • ext73
    replied
    Originally posted by ext73 View Post
    If you want to intelligently manage energy / performance / responsiveness of the system and hardware resources, it is proposed to install Our NeteXt'73 and install my solutions: one of the kernels - appropriate for the architecture, scripts managing energy and efficiency = APM and make appropriate entries in Grub, and also install the latest Linux firmware / microcode. Below videos of the action following system:

    Notebook - MSi X370:
    APU AMD E-350 (1600 MHz),
    GPU: Radeon 6310,
    RAM: 4 GB DDR3
    Kernel: 3.14.4-ext73-f1-29.5-brazos-ags-cfs,
    enegią management: APM 3.4, entries in Grub, Linux-firmware/amd microcode,
    Drivers: Catalyst 14.4 [stable].

    You can see how the system works by using profiles of performance-ondemand and performance-conservative - for APM. In the movies you can see how my APM gradually "quenches" individual devices and a decrease of energy consumption.



    video-2

    video-3

    video-4
    aha another important piece of information - while working on the battery practically everything in PowerTOP will be on Good [on AC everything will be on the 'Bad' - intentionally = full power of the machine] - almost as certainly 'VM writeback timeout' will be 'Bad' - here is my purposeful = value proposed by PowerTOP I consider "inappropriate". In addition, a certain portion of energy saving systems WiFi does not work - hence be 'Bad' = disabled functionality in the driver sources [Developers driver turned off] or the lack of such functionality at all. This works for sure in part Realtek drivers, Atcheros or all of Intel's ... well, unless you switch it off this functionality by NeteXt'73.
    Last edited by ext73; 05-24-2014, 05:25 PM.

    Leave a comment:


  • ext73
    replied
    A true energy management system

    If you want to intelligently manage energy / performance / responsiveness of the system and hardware resources, it is proposed to install Our NeteXt'73 and install my solutions: one of the kernels - appropriate for the architecture, scripts managing energy and efficiency = APM and make appropriate entries in Grub, and also install the latest Linux firmware / microcode. Below videos of the action following system:

    Notebook - MSi X370:
    APU AMD E-350 (1600 MHz),
    GPU: Radeon 6310,
    RAM: 4 GB DDR3
    Kernel: 3.14.4-ext73-f1-29.5-brazos-ags-cfs,
    enegią management: APM 3.4, entries in Grub, Linux-firmware/amd microcode,
    Drivers: Catalyst 14.4 [stable].

    You can see how the system works by using profiles of performance-ondemand and performance-conservative - for APM. In the movies you can see how my APM gradually "quenches" individual devices and a decrease of energy consumption.



    video-2

    video-3

    video-4

    Leave a comment:


  • ext73
    replied
    Originally posted by AnAkIn View Post
    It might be a bad idea to enable some of the settings. On my laptop:
    - Intel HDA powersave causes an annoying "clicking" sound from speakers
    - USB powersave causes my mouse to stop working every 30 seconds
    Try my kernels nad APM [instal NeteXt'73] - I resolved this problems

    netext73.pl

    Leave a comment:


  • AnAkIn
    replied
    It might be a bad idea to enable some of the settings. On my laptop:
    - Intel HDA powersave causes an annoying "clicking" sound from speakers
    - USB powersave causes my mouse to stop working every 30 seconds

    Leave a comment:

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