Hi
> > >
> > > In fair.c:select_task_rq_fair(), if feec() returns a error (< 0), then
> > > prev_cpu is selected. I think it's better to still let feec() signal
> > > that something happened and let select_task_rq_fair() select prev_cpu by
> > > itself.
> > In fair.c:select_task_rq_fair(), when fee
Hi,
>
> In fair.c:select_task_rq_fair(), if feec() returns a error (< 0), then
> prev_cpu is selected. I think it's better to still let feec() signal
> that something happened and let select_task_rq_fair() select prev_cpu by
> itself.
In fair.c:select_task_rq_fair(), when feec() returns a error (
Hi
On Tue, Apr 13, 2021 at 1:15 AM Pierre Gondois wrote:
>
> Hi
> > > > >
> > > > > This patch-set is not significantly improving the execution time of
> > > > > feec(). The results we have so far are an improvement of 5-10% in
> > > > > execution time, with feec() being executed in < 10us. So th
Hi
> > >
> > > This patch-set is not significantly improving the execution time of
> > > feec(). The results we have so far are an improvement of 5-10% in
> > > execution time, with feec() being executed in < 10us. So the
gain is not
> > > spectacular.
> >
> > well， I meaned to cache all util v
Hi
>
> Hi,
> > >
> > > This patch-set is not significantly improving the execution time of
> > > feec(). The results we have so far are an improvement of 5-10% in
> > > execution time, with feec() being executed in < 10us. So the gain is not
> > > spectacular.
> >
> > well， I meaned to cache all ut
Hi,
> > > Hi,
> > > > I test the patch, but the overflow still exists.
> > > > In the "sched/fair: Use pd_cache to speed up
> > find_energy_efficient_cpu()"
> > > > I wonder why recompute the cpu util when cpu==dst_cpu in
> > compute_energy(),
> > > > when the dst_cpu's util change, it also would
Hi
>
> Hi,
> > Hi
> >
> > On Wed, Apr 7, 2021 at 10:11 PM Pierre wrote:
> > >
> > > Hi,
> > > > I test the patch, but the overflow still exists.
> > > > In the "sched/fair: Use pd_cache to speed up
> > find_energy_efficient_cpu()"
> > > > I wonder why recompute the cpu util when cpu==dst_cpu in
>
Hi,
Hi
On Wed, Apr 7, 2021 at 10:11 PM Pierre wrote:
>
> Hi,
> > I test the patch, but the overflow still exists.
> > In the "sched/fair: Use pd_cache to speed up
find_energy_efficient_cpu()"
> > I wonder why recompute the cpu util when cpu==dst_cpu in
compute_energy(),
> > when the dst_cpu'
Hi
On Wed, Apr 7, 2021 at 10:11 PM Pierre wrote:
>
> Hi,
> > I test the patch, but the overflow still exists.
> > In the "sched/fair: Use pd_cache to speed up find_energy_efficient_cpu()"
> > I wonder why recompute the cpu util when cpu==dst_cpu in compute_energy(),
> > when the dst_cpu's util ch
Hi,
I test the patch, but the overflow still exists.
In the "sched/fair: Use pd_cache to speed up find_energy_efficient_cpu()"
I wonder why recompute the cpu util when cpu==dst_cpu in compute_energy(),
when the dst_cpu's util change, it also would cause the overflow.
The patches aim to cache th
Hi Dietmar
On Fri, Apr 2, 2021 at 2:07 AM Dietmar Eggemann
wrote:
>
> +cc: Pierre Gondois
>
> On 30/03/2021 11:45, Quentin Perret wrote:
> > Hi,
> >
> > On Tuesday 30 Mar 2021 at 13:21:54 (+0800), Xuewen Yan wrote:
> >> From: Xuewen Yan
> >>
> >> now the energy delta compute as follow:
> >>
> >
+cc: Pierre Gondois
On 30/03/2021 11:45, Quentin Perret wrote:
> Hi,
>
> On Tuesday 30 Mar 2021 at 13:21:54 (+0800), Xuewen Yan wrote:
>> From: Xuewen Yan
>>
>> now the energy delta compute as follow:
>>
>> base_energy_pd = compute_energy(p, -1, pd);
>> --->Traverse all CPUs in pd
>>
Hi,
On Tuesday 30 Mar 2021 at 13:21:54 (+0800), Xuewen Yan wrote:
> From: Xuewen Yan
>
> now the energy delta compute as follow:
>
> base_energy_pd = compute_energy(p, -1, pd);
> --->Traverse all CPUs in pd
> --->em_pd_energy()
> -
From: Xuewen Yan
now the energy delta compute as follow:
base_energy_pd = compute_energy(p, -1, pd);
--->Traverse all CPUs in pd
--->em_pd_energy()
- \
search for the max_sapre_cap_cpu \
---
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