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Message-ID: <63a63f5e-846a-3235-56f9-3cc9b5c2dd4d@arm.com>
Date:   Fri, 28 Oct 2022 08:23:33 +0100
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Subject: Re: [RFC PATCH v2 0/1] cpuidle: teo: Introduce optional
 util-awareness
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To:     Daniel Lezcano <daniel.lezcano@linexp.org>
Cc:     Dietmar.Eggemann@arm.com, dsmythies@telus.net,
        Kajetan Puchalski <kajetan.puchalski@arm.com>,
        yu.chen.surf@gmail.com, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        "Rafael J. Wysocki" <rafael@kernel.org>
References: <20221003144914.160547-1-kajetan.puchalski@arm.com>
 <CAJZ5v0hoe=8nY9vR=+Bjvexrg+E6fcO-S=W+PDkfD=Li6Uy__g@mail.gmail.com>
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 <2e02056b-24ef-6262-03bd-63fd6f3a5754@arm.com>
 <ac249d3c-6907-daf5-1047-0b3823eef1aa@linexp.org>
From:   Lukasz Luba <lukasz.luba@arm.com>
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On 10/28/22 08:11, Daniel Lezcano wrote:
> On 28/10/2022 09:08, Lukasz Luba wrote:
> 
> [ ... ]
> 
>>> [1] Dynamic workload characterization for power efficient scheduling 
>>> on CMP systems : https://cseweb.ucsd.edu//~tullsen/islped10.pdf
>>>
>>> [2] 
>>> https://git.linaro.org/people/daniel.lezcano/linux.git/commit/?h=cpuidle/mobile-governor-v5.1&id=de1edb05e3c342f0738b414aa84263d6555b7462 
>>>
>>>
>>>
>>
>> Thanks Daniel! I forgot about your work in this area. As I have
>> responded in some other email in this thread, we might start
>> from a new small governor and than others can contribute.
>>
>> Even this small governor that Kajetan showed me performs really
>> good on pixel6.
> 
> Do you have others ARM64 platforms to compare with ?
> 

Yes we have, also some older platforms (~10years now, which
would be nice to check how they would perform).
We also have a big arm64 server to give it a try there. So those results
will be available with the new patch when we decide to go the new
governor.