linux-kernel - Re: [PATCH v4 00/18] Introduce runtime modifiable Energy Model

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Message-ID: <20230928215628.u53wmwlr6lm5qzpe@airbuntu>
Date:   Thu, 28 Sep 2023 22:56:28 +0100
From:   Qais Yousef <qyousef@...alina.io>
To:     Lukasz Luba <lukasz.luba@....com>
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        rafael@...nel.org, dietmar.eggemann@....com, rui.zhang@...el.com,
        amit.kucheria@...durent.com, amit.kachhap@...il.com,
        daniel.lezcano@...aro.org, viresh.kumar@...aro.org,
        len.brown@...el.com, pavel@....cz, mhiramat@...nel.org,
        wvw@...gle.com
Subject: Re: [PATCH v4 00/18] Introduce runtime modifiable Energy Model

Hi Lukasz

On 09/25/23 09:11, Lukasz Luba wrote:
> Hi all,
> 
> This patch set adds a new feature which allows to modify Energy Model (EM)
> power values at runtime. It will allow to better reflect power model of
> a recent SoCs and silicon. Different characteristics of the power usage
> can be leveraged and thus better decisions made during task placement in EAS.
> 
> It's part of feature set know as Dynamic Energy Model. It has been presented
> and discussed recently at OSPM2023 [3]. This patch set implements the 1st
> improvement for the EM.

Thanks for the series! I'm on CC this time :-) Unfortunately I have a planned
holiday starting tomorrow, so won't get a chance to do proper review till I'm
back which would be few weeks from now.

I just want to iterate that this is a real problem being seen in practice where
it's hard to provide a single average EM for all workloads now. So we certainly
need something like this.

Hopefully I'll get a chance to help with review when I'm back from holidays.


Thanks!

--
Qais Yousef