On 20.08.20 22:39, Rik van Riel wrote:
> On Thu, 2020-08-20 at 16:56 +0200, Dietmar Eggemann wrote:
[...]
> The issue happens with a flat runqueue, when t1 goes
> to sleep, but t2 and t3 continue running.
>
> We need to make sure the vruntime for t2 has not been
> advanced so far into the future
On Thu, 2020-08-20 at 16:56 +0200, Dietmar Eggemann wrote:
> Hi Rik,
>
> On 31/07/2020 09:42, Rik van Riel wrote:
>
> [...]
>
> > Lets revisit the hierarchy from above, and assign priorities
> > to the cgroups, with the fixed point one being 1000. Lets
> > say cgroups A, A1, and B have priority
Hi Rik,
On 31/07/2020 09:42, Rik van Riel wrote:
[...]
> Lets revisit the hierarchy from above, and assign priorities
> to the cgroups, with the fixed point one being 1000. Lets
> say cgroups A, A1, and B have priority 1000, while cgroup
> A2 has priority 1.
>
> /\
>/ \
>
On Fri, 2020-08-07 at 16:14 +0200, Dietmar Eggemann wrote:
> On 31/07/2020 09:42, Rik van Riel wrote:
> > Possible solution
> > ...
> I imagine that I can see what you want to achieve here ;-)
>
> But it's hard since your v5 RFC
> https://lkml.kernel.org/r/20190906191237.27006-1-r...@surriel.c
Hi Rik,
On 31/07/2020 09:42, Rik van Riel wrote:
> Hello,
>
> last year at Linux Plumbers conference, I presented on my work
> of turning the hierarchical CFS runqueue into a flat runqueue,
> and Paul Turner pointed out some corner cases that could not
> work with my design as it was last year.
>
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