linux-kernel - Re: [RESEND][PATCH v3 1/1] sched: Report the different kinds of imbalances in /proc/schedstat

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Date: Wed, 15 May 2024 10:42:17 +0530
From: Swapnil Sapkal <Swapnil.Sapkal@....com>
To: Chen Yu <yu.c.chen@...el.com>, Shrikanth Hegde <sshegde@...ux.ibm.com>
Cc: linux-kernel@...r.kernel.org, mingo@...hat.com, peterz@...radead.org,
 torvalds@...ux-foundation.org, juri.lelli@...hat.com,
 dietmar.eggemann@....com, rostedt@...dmis.org, mgorman@...e.de,
 bristot@...hat.com, vschneid@...hat.com, vincent.guittot@...aro.org,
 gautham.shenoy@....com, kprateek.nayak@....com
Subject: Re: [RESEND][PATCH v3 1/1] sched: Report the different kinds of
 imbalances in /proc/schedstat

Hi Chenyu,

Thank you for taking look at this patch.

On 5/14/2024 8:44 PM, Chen Yu wrote:
> On 2024-05-14 at 19:53:58 +0530, Shrikanth Hegde wrote:
>>
>>
>> On 5/14/24 4:44 PM, Chen Yu wrote:
>>> On 2024-05-14 at 04:44:45 +0000, Swapnil Sapkal wrote:
>>
>> It's been increased already as part of below commit
>>
>> commit 11b0bfa5d463b17cac5bf6b94fea4921713530c3
>> Author: Ingo Molnar <mingo@...nel.org>
>> Date:   Fri Mar 8 11:58:55 2024 +0100
>>
>>      sched/debug: Increase SCHEDSTAT_VERSION to 16
>>      
>>      We changed the order of definitions within 'enum cpu_idle_type',
>>      which changed the order of [CPU_MAX_IDLE_TYPES] columns in
>>      show_schedstat().
>>
>>
> 
> I see, so it has been increased due to commit 38d707c54df4, and current patch
> is accomany with that.

Yes, this patch accompanies commit 38d707c54df4. It updates the documentation
because of change in order of [CPU_MAX_IDLE_TYPES] columns and adds the imbalance
fields which will be used by Perf schedstat tool[1].

[1] https://lore.kernel.org/all/20240508060427.417-1-ravi.bangoria@amd.com/

> 
> thanks,
> Chenyu

--
Thanks and Regards,
Swapnil