On Thu, Nov 26, 2020 at 10:17:15AM +1100, Balbir Singh wrote:
> On Tue, Nov 24, 2020 at 10:09:55AM +0100, Peter Zijlstra wrote:
> > The basic observation the current approach relies on is that al that
> > faffery basically boils down to the fact that vruntime only means
> > something when there is
On Tue, Nov 24, 2020 at 10:09:55AM +0100, Peter Zijlstra wrote:
> On Tue, Nov 24, 2020 at 10:31:49AM +1100, Balbir Singh wrote:
> > On Mon, Nov 23, 2020 at 07:31:31AM -0500, Vineeth Pillai wrote:
> > > Hi Balbir,
> > >
> > > On 11/22/20 6:44 AM, Balbir Singh wrote:
> > > >
> > > > This seems cumb
On Tue, Nov 24, 2020 at 10:31:49AM +1100, Balbir Singh wrote:
> On Mon, Nov 23, 2020 at 07:31:31AM -0500, Vineeth Pillai wrote:
> > Hi Balbir,
> >
> > On 11/22/20 6:44 AM, Balbir Singh wrote:
> > >
> > > This seems cumbersome, is there no way to track the min_vruntime via
> > > rq->core->min_vrun
On Mon, Nov 23, 2020 at 07:31:31AM -0500, Vineeth Pillai wrote:
> Hi Balbir,
>
> On 11/22/20 6:44 AM, Balbir Singh wrote:
> >
> > This seems cumbersome, is there no way to track the min_vruntime via
> > rq->core->min_vruntime?
> Do you mean to have a core wide min_vruntime? We had a
> similar app
Hi Balbir,
On 11/22/20 6:44 AM, Balbir Singh wrote:
This seems cumbersome, is there no way to track the min_vruntime via
rq->core->min_vruntime?
Do you mean to have a core wide min_vruntime? We had a
similar approach from v3 to v7 and it had major issues which
broke the assumptions of cfs. The
On Tue, Nov 17, 2020 at 06:19:39PM -0500, Joel Fernandes (Google) wrote:
> During force-idle, we end up doing cross-cpu comparison of vruntimes
> during pick_next_task. If we simply compare (vruntime-min_vruntime)
> across CPUs, and if the CPUs only have 1 task each, we will always
> end up compari
During force-idle, we end up doing cross-cpu comparison of vruntimes
during pick_next_task. If we simply compare (vruntime-min_vruntime)
across CPUs, and if the CPUs only have 1 task each, we will always
end up comparing 0 with 0 and pick just one of the tasks all the time.
This starves the task th
7 matches
Mail list logo
