Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: [Patch v4 3/6] sched/fair: Enable CFS periodic tick to update
 thermal pressure
To:     Dietmar Eggemann <dietmar.eggemann@arm.com>, mingo@redhat.com,
        peterz@infradead.org, ionela.voinescu@arm.com,
        vincent.guittot@linaro.org, rui.zhang@intel.com,
        edubezval@gmail.com, qperret@google.com
References: <1571776465-29763-1-git-send-email-thara.gopinath@linaro.org>
 <1571776465-29763-4-git-send-email-thara.gopinath@linaro.org>
 <a303b61e-42f6-dfd7-264b-ead91da5f5ca@arm.com>
Cc:     linux-kernel@vger.kernel.org, amit.kachhap@gmail.com,
        javi.merino@kernel.org, daniel.lezcano@linaro.org
From:   Thara Gopinath <thara.gopinath@linaro.org>
Message-ID: <5DBB0FF5.4040904@linaro.org>
Date:   Thu, 31 Oct 2019 12:46:45 -0400
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101
 Thunderbird/38.5.1
MIME-Version: 1.0
In-Reply-To: <a303b61e-42f6-dfd7-264b-ead91da5f5ca@arm.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On 10/31/2019 12:11 PM, Dietmar Eggemann wrote:
> On 22.10.19 22:34, Thara Gopinath wrote:
>> Introduce support in CFS periodic tick to trigger the process of
>> computing average thermal pressure for a cpu.
>>
>> Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
>> ---
>>  kernel/sched/fair.c | 5 +++++
>>  1 file changed, 5 insertions(+)
>>
>> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
>> index 682a754..4f9c2cb 100644
>> --- a/kernel/sched/fair.c
>> +++ b/kernel/sched/fair.c
>> @@ -21,6 +21,7 @@
>>   *  Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra
>>   */
>>  #include "sched.h"
>> +#include "thermal.h"
>>  
>>  #include <trace/events/sched.h>
>>  
>> @@ -7574,6 +7575,8 @@ static void update_blocked_averages(int cpu)
>>  		done = false;
>>  
>>  	update_blocked_load_status(rq, !done);
>> +
>> +	trigger_thermal_pressure_average(rq);
>>  	rq_unlock_irqrestore(rq, &rf);
>>  }
> 
> Since you update the thermal pressure signal in CFS's
> update_blocked_averages() as well, I guess the patch title has to change.
Will do. Thanks.
> 
>>  
>> @@ -9933,6 +9936,8 @@ static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued)
>>  
>>  	update_misfit_status(curr, rq);
>>  	update_overutilized_status(task_rq(curr));
>> +
>> +	trigger_thermal_pressure_average(rq);
>>  }
>>  
>>  /*
>>


-- 
Warm Regards
Thara