From: Dietmar Eggemann <dietmar.eggemann@arm.com>
To: Qais Yousef <qyousef@layalina.io>,
Vincent Guittot <vincent.guittot@linaro.org>
Cc: Kajetan Puchalski <kajetan.puchalski@arm.com>,
mingo@kernel.org, peterz@infradead.org, rafael@kernel.org,
viresh.kumar@linaro.org, vschneid@redhat.com,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
lukasz.luba@arm.com, wvw@google.com, xuewen.yan94@gmail.com,
han.lin@mediatek.com, Jonathan.JMChen@mediatek.com
Subject: Re: [PATCH v2] sched/fair: unlink misfit task from cpu overutilized
Date: Mon, 16 Jan 2023 09:21:20 +0000 [thread overview]
Message-ID: <487f0252-c697-eb62-989d-57ee731691a2@arm.com> (raw)
In-Reply-To: <20230114211854.nmvmhtd5yz5wgh2a@airbuntu>
On 14/01/2023 22:18, Qais Yousef wrote:
> On 01/13/23 15:28, Vincent Guittot wrote:
>> Hi Kajetan,
>>
>> On Fri, 13 Jan 2023 at 14:50, Kajetan Puchalski
>> <kajetan.puchalski@arm.com> wrote:
[...]
>>> sched/uclamp: Fix a uninitialized variable warnings
>>> (baseline_ufc) sched/fair: Check if prev_cpu has highest spare cap in feec()
>>> sched/uclamp: Cater for uclamp in find_energy_efficient_cpu()'s early exit condition
>>> sched/uclamp: Make cpu_overutilized() use util_fits_cpu()
>>> sched/uclamp: Make asym_fits_capacity() use util_fits_cpu()
>>> sched/uclamp: Make select_idle_capacity() use util_fits_cpu()
>>> sched/uclamp: Fix fits_capacity() check in feec()
>>> sched/uclamp: Make task_fits_capacity() use util_fits_cpu()
>>> sched/uclamp: Fix relationship between uclamp and migration margin
>>> (previous 'baseline' was here)
>>>
>>> I omitted the 3 patches relating directly to capacity_inversion but in
>
> This could lead to confusion. Was there a specific reason for this omission?
> Did you hit some problem?
I thought Vincent's 'split MF from CPU OU' should replace 'CapInv'?
https://lkml.kernel.org/r/20221209164739.GA24368@vingu-book
... I have reverted patches:
Revert "sched/fair: Detect capacity inversion"
Revert "sched/fair: Consider capacity inversion in util_fits_cpu()"
Revert "sched/uclamp: Make cpu_overutilized() use util_fits_cpu()" ...
You also mentioned this in
https://lkml.kernel.org/r/<20230115001906.v7uq4ddodrbvye7d@airbuntu
[...]
next prev parent reply other threads:[~2023-01-16 9:21 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-28 16:54 [PATCH v2] sched/fair: unlink misfit task from cpu overutilized Vincent Guittot
2023-01-12 14:26 ` Qais Yousef
2023-01-13 8:53 ` Vincent Guittot
2023-01-14 18:21 ` Qais Yousef
2023-01-13 13:49 ` Kajetan Puchalski
2023-01-13 14:28 ` Vincent Guittot
2023-01-13 14:50 ` Kajetan Puchalski
2023-01-14 21:18 ` Qais Yousef
2023-01-16 9:21 ` Dietmar Eggemann [this message]
2023-01-16 11:25 ` Vincent Guittot
2023-01-17 16:40 ` Qais Yousef
2023-01-20 16:08 ` Kajetan Puchalski
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