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Message-ID: <b3d98e95-8ce6-dc3b-25dd-3d23af86c7c3@arm.com>
Date:   Tue, 20 Dec 2022 12:52:43 +0000
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Subject: Re: [RFC PATCH 3/3] sched/fair: Traverse cpufreq policies to detect
 capacity inversion
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To:     Qais Yousef <qyousef@layalina.io>
Cc:     Ingo Molnar <mingo@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Viresh Kumar <viresh.kumar@linaro.org>,
        linux-pm@vger.kernel.org,
        Vincent Guittot <vincent.guittot@linaro.org>,
        linux-kernel@vger.kernel.org, Wei Wang <wvw@google.com>,
        Xuewen Yan <xuewen.yan94@gmail.com>,
        Hank <han.lin@mediatek.com>,
        Jonathan JMChen <Jonathan.JMChen@mediatek.com>
References: <20221127141742.1644023-4-qyousef@layalina.io>
 <CAKfTPtCawKvhMwJYVUskYcX7eR2K7SziWVzvjGh6JCVB+WT5tQ@mail.gmail.com>
 <20221203143323.w32boxa6asqvvdnp@airbuntu>
 <CAKfTPtCZYGEvDBe5X1v7TiNZag0atUozGKip6EAgvZDWyo8e-g@mail.gmail.com>
 <20221205110159.nd5igwvsaj55jar7@airbuntu>
 <CAKfTPtAOhQyfyH_qRArC2SZ1sQOBnRZ4CXARiWu2fvb+KPGsXw@mail.gmail.com>
 <20221208140526.vvmjxlz6akgqyoma@airbuntu>
 <20221209164739.GA24368@vingu-book>
 <20221212184317.sntxy3h6k44oz4mo@airbuntu>
 <19bd3f60-63ea-4ccc-b5a2-6507276c8f0d@arm.com>
 <20221220115130.lhhakj36kn3opqtz@airbuntu>
From:   Lukasz Luba <lukasz.luba@arm.com>
In-Reply-To: <20221220115130.lhhakj36kn3opqtz@airbuntu>
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On 12/20/22 11:51, Qais Yousef wrote:
> On 12/13/22 17:42, Lukasz Luba wrote:
>> Hi Qais,
>>
>> I thought I could help with this issue.
> 
> Thanks Lukasz!
> 
>>
>> On 12/12/22 18:43, Qais Yousef wrote:
>>> On 12/09/22 17:47, Vincent Guittot wrote:
>>>
>>> [...]
>>>

[snip]

>>
>> If you like I can develop and test such code in the arch_topology.c
> 
> As we discussed offline, Vincent is keen on decoupling the util_fits_cpu()
> logic from HMP - which means I need to reword this differently.

Fingers crossed!

> 
> Let's keep this in the back burner in case we need to revisit it again.
> 
> Appreciate the proposal!!

No worries!

Cheers,
Lukasz

> 
> 
> Many thanks
> 
> --
> Qais Yousef