Re: [PATCH] sched/fair: fix runnable_avg for throttled cfs

[Dietmar Eggemann]

On 27.02.20 14:58, Vincent Guittot wrote:
> On Thu, 27 Feb 2020 at 14:10, Vincent Guittot
> <vincent.guittot@xxxxxxxxxx> wrote:
>>
>> On Thu, 27 Feb 2020 at 12:20, Dietmar Eggemann <dietmar.eggemann@xxxxxxx> wrote:
>>>
>>> On 26.02.20 21:01, Vincent Guittot wrote:
>>>> On Wed, 26 Feb 2020 at 20:04, <bsegall@xxxxxxxxxx> wrote:
>>>>>
>>>>> Vincent Guittot <vincent.guittot@xxxxxxxxxx> writes:

[...]

>>> Shouldn't this be 'current' rather 'new' h_nr_running for
>>> group_se->runnable_weight? IMHO, you want to cache the current value
>>> before you add/subtract task_delta.
>>
>> hmm... it can't be current in both places. In my explanation,
>> "current" means the current situation when we started to throttle cfs
>> and "new" means the new situation after we finished to throttle the
>> cfs. I should probably use old and new to prevent any
>> misunderstanding.
> 
> I'm about to send a new version to fix some minor changes: The if
> statement should have some  { }   as there are some on the else part
> 
> Would it be better for you if i use old and new instead of current and
> new in the commit message ?

Personally yes, but now I understand the other wording as well. Thanks.

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