Messages in this thread | | | Subject | Re: [PATCH 1/3] sched/fair: Prepare variables for increased precision of EAS estimated energy | From | Lukasz Luba <> | Date | Wed, 7 Jul 2021 11:41:16 +0100 |
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On 7/7/21 11:32 AM, Vincent Guittot wrote: > On Wed, 7 Jul 2021 at 12:29, Lukasz Luba <lukasz.luba@arm.com> wrote: >> >> >> >> On 7/7/21 11:11 AM, Vincent Guittot wrote: >>> On Wed, 7 Jul 2021 at 12:06, Lukasz Luba <lukasz.luba@arm.com> wrote: >>>> >> >> [snip] >> >>>> No. It's in 0.1uW scale, so 800Watts. Which is 16 CPUs * 64Watts >>> >>> Oh! you want 0.1uW precision .... This doesn't seem realistic at all. >>> I'm not even sure that the power model can even reach an accuracy of >>> 1mW >>> >> >> True, the EM is registering platform with 1mW precision, but 1uW > > Do you mean 1uW or 0.1uW ?
In this patch set I've proposed 0.1uW, but I'm open to drop one order of magnitude. The 1uW still be good.
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