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Date: Mon, 7 Oct 2024 11:42:38 +0100
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Subject: Re: [PATCHv2] cpufreq/schedutil: Only bind threads if needed
To: "Rafael J. Wysocki" <rafael@kernel.org>,
 Peter Zijlstra <peterz@infradead.org>, Juri Lelli <juri.lelli@redhat.com>
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>,
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From: Christian Loehle <christian.loehle@arm.com>
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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.


Regards,
Christian