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Date: Thu, 24 Oct 2024 10:13:57 +0100
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Subject: Re: [PATCHv2] cpufreq/schedutil: Only bind threads if needed
From: Christian Loehle <christian.loehle@arm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>, Qais Yousef
 <qyousef@layalina.io>, Vincent Guittot <vincent.guittot@linaro.org>,
 "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
 linux-pm <linux-pm@vger.kernel.org>,
 Dietmar Eggemann <dietmar.eggemann@arm.com>,
 Pierre Gondois <pierre.gondois@arm.com>, Juri Lelli <juri.lelli@redhat.com>,
 Vincent Guittot <vincent.guittot@linaro.org>
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On 10/7/24 11:42, Christian Loehle wrote:
> On 10/1/24 19:31, Rafael J. Wysocki wrote:
>> On Fri, Sep 27, 2024 at 10:59 AM Christian Loehle
>> <christian.loehle@arm.com> wrote:
>>>
>>> Remove the unconditional binding of sugov kthreads to the affected CPUs
>>> if the cpufreq driver indicates that updates can happen from any CPU.
>>> This allows userspace to set affinities to either save power (waking up
>>> bigger CPUs on HMP can be expensive) or increasing performance (by
>>> letting the utilized CPUs run without preemption of the sugov kthread).
>>>
>>> Signed-off-by: Christian Loehle <christian.loehle@arm.com>
>>
>> Acked-by: Rafael J. Wysocki <rafael@kernel.org>
>>
>> and I'm assuming that this will go in via tip.
> 
> Peter, is that fine with you?
> 
> @Juri: I didn't add your (somewhat implied?) ACK on v2, so I'd be happy to
> get it on the dl_task_check_affinity() part.
> 

Peter,
gentle ping on this.
Thank you.

Regards,
Christian