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Message-ID: <3cec1fb2-d2f8-9693-178e-ac1b9aa77506@oracle.com>
Date: Thu, 25 Oct 2018 10:04:52 -0400
From: Steven Sistare <steven.sistare@...cle.com>
To: Valentin Schneider <valentin.schneider@....com>, mingo@...hat.com,
peterz@...radead.org
Cc: subhra.mazumdar@...cle.com, dhaval.giani@...cle.com,
rohit.k.jain@...cle.com, daniel.m.jordan@...cle.com,
pavel.tatashin@...rosoft.com, matt@...eblueprint.co.uk,
umgwanakikbuti@...il.com, riel@...hat.com, jbacik@...com,
juri.lelli@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 05/10] sched/fair: Hoist idle_stamp up from idle_balance
On 10/25/2018 9:47 AM, Valentin Schneider wrote:
> Hi Steve,
>
> On 22/10/2018 15:59, Steve Sistare wrote:
> [...]
>> @@ -6740,8 +6744,19 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int wake_
>> return p;
>>
>> idle:
>> + /*
>> + * We must set idle_stamp _before_ calling idle_balance(), such that we
>> + * measure the duration of idle_balance() as idle time.
>> + */
>> + IF_SMP(rq->idle_stamp = rq_clock(rq);)
>> +
>> new_tasks = idle_balance(rq, rf);
>>
>> + if (new_tasks)
>> + IF_SMP(rq->idle_stamp = 0;)
>> +
>> + schedstat_end_time(rq->find_time, time);
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> That's a stray hunk from 10/10
Thanks Valentin, will fix in next version. I reordered the patches and missed this.
- Steve
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