linux-kernel - Re: [PATCH v2 0/4] sched/fair: Dynamic asym priority support

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Message-ID: <c72623ad-2e52-4aaa-b2f2-11e88dfa1648@amd.com>
Date: Thu, 10 Apr 2025 21:10:42 +0530
From: K Prateek Nayak <kprateek.nayak@....com>
To: Peter Zijlstra <peterz@...radead.org>
CC: Ingo Molnar <mingo@...hat.com>, Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>, "Gautham R. Shenoy"
	<gautham.shenoy@....com>, Mario Limonciello <mario.limonciello@....com>,
	"Rafael J. Wysocki" <rafael@...nel.org>, Viresh Kumar
	<viresh.kumar@...aro.org>, <linux-pm@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Dietmar Eggemann <dietmar.eggemann@....com>,
	Steven Rostedt <rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>, "Mel
 Gorman" <mgorman@...e.de>, Valentin Schneider <vschneid@...hat.com>, "Waiman
 Long" <llong@...hat.com>, Swapnil Sapkal <swapnil.sapkal@....com>, "Dhananjay
 Ugwekar" <Dhananjay.Ugwekar@....com>, Huang Rui <ray.huang@....com>, "Perry
 Yuan" <perry.yuan@....com>
Subject: Re: [PATCH v2 0/4] sched/fair: Dynamic asym priority support

Hello Peter,

On 4/10/2025 4:22 PM, Peter Zijlstra wrote:
> On Wed, Apr 09, 2025 at 05:34:42AM +0000, K Prateek Nayak wrote:
>> K Prateek Nayak (4):
>>    sched/fair: Use READ_ONCE() to read sg->asym_prefer_cpu
>>    sched/topology: Introduce sched_update_asym_prefer_cpu()
>>    cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings change
>>    sched/debug: Print the local group's asym_prefer_cpu
>>
>>   drivers/cpufreq/amd-pstate.c   |  4 ++-
>>   include/linux/sched/topology.h |  6 ++++
>>   kernel/sched/debug.c           |  4 +++
>>   kernel/sched/fair.c            |  5 +--
>>   kernel/sched/topology.c        | 58 ++++++++++++++++++++++++++++++++++
>>   5 files changed, 74 insertions(+), 3 deletions(-)
> 
> This seems reasonable. I'll queue it up, and unless someone (robot or
> real person) objects, we'll get it merged :-)

Thank you! I'll be ready with a fire extinguisher but hopefully I won't
need it :)

-- 
Thanks and Regards,
Prateek