linux-kernel - Re: [PATCH v3 0/2] cpufreq/amd-pstate: Set initial min_freq to lowest_nonlinear

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Message-ID: <d89bfc1b-37cb-4d8b-b944-8dc385915bcf@gmail.com>
Date: Sun, 8 Dec 2024 07:54:38 +0000
From: Hanabishi <i.r.e.c.c.a.k.u.n+kernel.org@...il.com>
To: Dhananjay Ugwekar <Dhananjay.Ugwekar@....com>, gautham.shenoy@....com,
 mario.limonciello@....com, perry.yuan@....com, rafael@...nel.org,
 viresh.kumar@...aro.org
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/2] cpufreq/amd-pstate: Set initial min_freq to
 lowest_nonlinear_freq

Hello. Maybe I'm too late on this, but I have some concerns.

On 10/17/24 05:39, Dhananjay Ugwekar wrote:
> In other systems, power consumption has increased but so has the
> throughput/watt.

I just want to bring up the fact that this change affects all governors. It sounds good for the performance governor, but not so much for the powersave governor.

So the question is: don't we want the lowest power consumption possible in the powersave mode? Even if it means decreased efficiency. Powersave by definition supposed to make battery last as long as possible no matter what, isn't it?