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Subject: Re: [PATCH -tip 23/32] sched: Add a per-thread core scheduling
 interface
To:     Joel Fernandes <joel@joelfernandes.org>
Cc:     Nishanth Aravamudan <naravamudan@digitalocean.com>,
        Julien Desfossez <jdesfossez@digitalocean.com>,
        Peter Zijlstra <peterz@infradead.org>,
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From:   chris hyser <chris.hyser@oracle.com>
Message-ID: <16a390e4-b44d-b0eb-1df6-6e56d78d009f@oracle.com>
Date:   Mon, 14 Dec 2020 14:44:09 -0500
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On 12/14/20 2:31 PM, Joel Fernandes wrote:
>> diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
>> index cffdfab..50c31f3 100644
>> --- a/kernel/sched/debug.c
>> +++ b/kernel/sched/debug.c
>> @@ -1030,6 +1030,7 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
>>   
>>   #ifdef CONFIG_SCHED_CORE
>>   	__PS("core_cookie", p->core_cookie);
>> +	__PS("core_task_cookie", p->core_task_cookie);
>>   #endif
> 
> Hmm, so the final cookie of the task is always p->core_cookie. This is what
> the scheduler uses. All other fields are ingredients to derive the final
> cookie value.
> 
> I will drop this hunk from your overall diff, but let me know if you
> disagree!


No problem. That was there primarily for debugging.

Thanks.

-chrish