On Mon, 8 May 2017 10:06:13 +0200
Peter Zijlstra wrote:
[...]
> > > #define BW_SHIFT 20
> > > #define BW_UNIT (1 << BW_SHIFT)
> > >
> > > static inline
> > > u64 grub_reclaim(u64 delta, struct rq *rq, struct sched_dl_entity
> > > *dl_se) {
> > > u64 u_inact = rq->dl.this_bw - rq->dl.ru
On Mon, May 08, 2017 at 09:41:08AM +0200, Luca Abeni wrote:
> Hi Peter,
>
> sorry for the delay; anyway, I am working on fixing the patchset
> according to the comments I received
>
> When working on one of your comments, I have a doubt:
>
> On Mon, 27 Mar 2017 16:26:33 +0200
> Peter Zijlstr
Hi Peter,
sorry for the delay; anyway, I am working on fixing the patchset
according to the comments I received
When working on one of your comments, I have a doubt:
On Mon, 27 Mar 2017 16:26:33 +0200
Peter Zijlstra wrote:
[...]
>
>
> #define BW_SHIFT 20
> #define BW_UNIT
On Mon, 27 Mar 2017 17:53:35 +0200
Peter Zijlstra wrote:
> On Mon, Mar 27, 2017 at 04:56:51PM +0200, Luca Abeni wrote:
>
> > > > +u64 grub_reclaim(u64 delta, struct rq *rq, u64 u)
> > > > {
> > > > + u64 u_act;
> > > > +
> > > > + if (rq->dl.this_bw - rq->dl.running_bw > (1 << 20) -
On Mon, Mar 27, 2017 at 04:56:51PM +0200, Luca Abeni wrote:
> > > +u64 grub_reclaim(u64 delta, struct rq *rq, u64 u)
> > > {
> > > + u64 u_act;
> > > +
> > > + if (rq->dl.this_bw - rq->dl.running_bw > (1 << 20) - u)
> > > + u_act = u;
> > > + else
> > > + u_act = (1 << 20) - rq->d
On Mon, 27 Mar 2017 16:26:33 +0200
Peter Zijlstra wrote:
> On Fri, Mar 24, 2017 at 04:53:01AM +0100, luca abeni wrote:
> > From: Luca Abeni
> >
> > Instead of decreasing the runtime as "dq = -Uact dt" (eventually
> > divided by the maximum utilization available for deadline tasks),
> > decrease
On Fri, Mar 24, 2017 at 04:53:01AM +0100, luca abeni wrote:
> From: Luca Abeni
>
> Instead of decreasing the runtime as "dq = -Uact dt" (eventually
> divided by the maximum utilization available for deadline tasks),
> decrease it as "dq = -(1 - Uinact) dt", where Uinact is the "inactive
> utiliza
From: Luca Abeni
Instead of decreasing the runtime as "dq = -Uact dt" (eventually
divided by the maximum utilization available for deadline tasks),
decrease it as "dq = -(1 - Uinact) dt", where Uinact is the "inactive
utilization".
In this way, the maximum fraction of CPU time that can be reclaim
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