linux-kernel - Re: [PATCH v3 08/12] PM: EM: Introduce runtime modifiable table

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Message-ID: <8fa02b18-7e41-eaea-f054-6842f6e310c6@arm.com>
Date:   Wed, 16 Aug 2023 15:05:25 +0200
From:   Dietmar Eggemann <dietmar.eggemann@....com>
To:     Lukasz Luba <lukasz.luba@....com>, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, rafael@...nel.org
Cc:     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,
        Pierre.Gondois@....com, ionela.voinescu@....com,
        mhiramat@...nel.org
Subject: Re: [PATCH v3 08/12] PM: EM: Introduce runtime modifiable table

On 21/07/2023 17:50, Lukasz Luba wrote:
> This patch introduces the new feature: modifiable EM perf_state table.

nit pick: The first sentence doesn't add any information. I would skip it.

[...]

> The runtime modifiable EM data is used by the Energy Aware Scheduler (EAS)
> for the task placement. The EAS is the only user of the 'runtime
> modifiable EM'. 

The runtime modifiable EM is currently only used ...
The you can skip the next sentence: "The EAS is the only user ..."

All the other users (thermal, etc.) are still using the
> default (basic) EM. This fact drove the design of this feature.

[...]