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Linux 3.11 May Lower Intel Power Consumption

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  • Linux 3.11 May Lower Intel Power Consumption

    Phoronix: Linux 3.11 May Lower Intel Power Consumption

    It's still being investigated, but early indications are that the Linux 3.11 kernel is consuming less power at least for Intel CPUs...

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

  • #2
    Why is it measured in milliwatts and not kilowatts?

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    • #3
      Originally posted by synaptix View Post
      Why is it measured in milliwatts and not kilowatts?
      I won't sleep until this gets answered

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      • #4
        Originally posted by Yorgos View Post
        I won't sleep until this gets answered
        Then you are gonna die tired my friend :P

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        • #5
          Values are the same and considering energy usage of modern laptops, it's easier to show it in mW.

          Edit: I guess, I have been trolled. (-_-)'
          Last edited by flecht; 07-26-2013, 05:59 PM.

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          • #6
            Originally posted by synaptix View Post
            Why is it measured in milliwatts and not kilowatts?
            i think you mean Watts

            Kilo = 1000
            Mili = 1/1000

            Edit: yeah me too (-_-)'
            Last edited by jrch2k8; 07-26-2013, 06:02 PM.

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            • #7
              So, it uses less power, but takes longer to complete x264 test (relative to 3.9). Perhaps integrating the curve for total energy used would be a nice idea?
              What we should be seeing, especially with haswell, is more dynamic power states. I realise this was with ivb, but I'd IMAGINE that intel is looking to make the kernel work best with their latest chips.
              Also need to see how the work towards overall platform power reduction is going. Hopefully enough time has passed since the new framework (around 3.6, IIRC) for querying and setting component states for at least some of the drivers to have updated.

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              • #8
                Originally posted by liam View Post
                So, it uses less power, but takes longer to complete x264 test (relative to 3.9). Perhaps integrating the curve for total energy used would be a nice idea?
                What we should be seeing, especially with haswell, is more dynamic power states. I realise this was with ivb, but I'd IMAGINE that intel is looking to make the kernel work best with their latest chips.
                Also need to see how the work towards overall platform power reduction is going. Hopefully enough time has passed since the new framework (around 3.6, IIRC) for querying and setting component states for at least some of the drivers to have updated.
                total power consumption (per task, like frames per Joule for the games and maybe per many tasks in parallel to see where the offset is) and idle consumption would be nice... Will the offset from many graphs and the idle pc be the same? and some kind of explanation what the "O" is on the "time graph". is it time for the x axis? is it the same scale for all of the lines?
                i know you are still doing tests and its not gonna be christmas soon. Its just what intrigues me.

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                • #9
                  Originally posted by synaptix View Post
                  Why is it measured in milliwatts and not kilowatts?
                  Hey, it's not an AMD FX-9000 series CPU...

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                  • #10
                    Originally posted by jrch2k8 View Post
                    i think you mean Watts

                    Kilo = 1000
                    Mili = 1/1000
                    I blame the alcohol.

                    Comment


                    • #11
                      can we get some power usage benchs about the new dynaticks system??(been there since 3.10, never saw even mentioned anywhere.)

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                      • #12
                        Originally posted by sireangelus View Post
                        can we get some power usage benchs about the new dynaticks system??(been there since 3.10, never saw even mentioned anywhere.)
                        Or different Schedulers, or ...
                        (And lattency measures, as long as Michael wont provide avrg. lattency first )

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                        • #13
                          dynaticks si a HUGE step foward in terms of power-consumption, and it was made to reduce it.

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                          • #14
                            Originally posted by DanL View Post
                            Hey, it's not an AMD FX-9000 series CPU...
                            that pull's a Terawatt

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                            • #15
                              Originally posted by sireangelus View Post
                              dynaticks si a HUGE step foward in terms of power-consumption, and it was made to reduce it.
                              Except that it doesn't seem to have any effect on power consumption, according to Linus.

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