Re: [RFC PATCH 1/1] sched/pelt: Introduce PELT multiplier

[Dietmar Eggemann]

On 06/09/2022 07:49, Vincent Guittot wrote:
> On Fri, 2 Sept 2022 at 09:54, Dietmar Eggemann <dietmar.eggemann@xxxxxxx> wrote:
>>
>> On 29/08/2022 12:13, Vincent Guittot wrote:
>>> On Mon, 29 Aug 2022 at 12:03, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>>>>
>>>> On Mon, Aug 29, 2022 at 10:08:13AM +0200, Peter Zijlstra wrote:
>>>>> On Mon, Aug 29, 2022 at 07:54:50AM +0200, Dietmar Eggemann wrote:
>>>>>> From: Vincent Donnefort <vincent.donnefort@xxxxxxx>

[...]

>> We still need rq_clock_task_mult(rq), i.e. `rq->clock_task_mult` in
>> _update_idle_rq_clock_pelt() though.
> 
> Why ? If the mult is defined at boot we just have to use
> "rq_clock_task(rq) << mult" instead of rq_clock_task(rq) when updating
> clock_pelt

Makes sense! Agreed.