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Can I measure the power performance of GPU based on Samsung Chromebook2?

Woojung Myung

Dear All,

I want to say really thanks for everyone. Because when I have a question, always this forum give me a precious answer

Cut to the chase, I am wondering whether I can measure the power performance of Mali GPU based on Samsung Chromebook 2.

Or any technical document about power performance when I use just one Mali GPU compute unit.

Thanks a lot, in advance

Yours sincerely,

Woojung Myung

Parents
  • 0 in reply to Rich Evans

    Thanks richevans

    By the way.. then which means even there's no way to guess the  power performance of GPU core unit based on SS chromebook 2?

    now I know X-U3 can be a good alternative, but the problem is I do not have enough time to buy and do the same job on X-U3..

    Because of my project deadline.. I really need the power consumption data of one compute unit..

    Is there any other way to know power data based on frequency? Or Vdd and I? I thought probably ARM has kind of datasheet of Mali GPU...

    I already googled it, but unfortunately I couldn't fine it..

    Thanks a lot,

    Woojung Myung

Reply
  • 0 in reply to Rich Evans

    Thanks richevans

    By the way.. then which means even there's no way to guess the  power performance of GPU core unit based on SS chromebook 2?

    now I know X-U3 can be a good alternative, but the problem is I do not have enough time to buy and do the same job on X-U3..

    Because of my project deadline.. I really need the power consumption data of one compute unit..

    Is there any other way to know power data based on frequency? Or Vdd and I? I thought probably ARM has kind of datasheet of Mali GPU...

    I already googled it, but unfortunately I couldn't fine it..

    Thanks a lot,

    Woojung Myung

Children
  • 0 in reply to Woojung Myung

    Hi nightskyz,

    Unfortunately there is no way to get these power numbers without an instrumented device which the retail Chromebook 2 isn't.

    The power consumption of the core depends on a huge number of variables, the SoC and its process, kernel configuration, workload, environmental factors, the nature of the work being done and as such we can't provide any estimates, even for where things like frequency are known.  You can of course calculate the power consumption if Vdd and I are known for the core, but there is no way for you to obtain this information from the device without making hardware modifications.

    My only suggestion is, unfortunately, to get yourself an Odroid X-U3 which is already instrumented and will allow you to take power measurements yourself.

    I'm sorry I can't be of more help in this case,

    Rich