On Wed, 2016-07-06 at 16:41 +0100, George Dunlap wrote:
> On Sat, Jun 18, 2016 at 12:11 AM, Dario Faggioli
>
> > diff --git a/xen/common/sched_credit.c b/xen/common/sched_credit.c
> > index a38a63d..a6645a2 100644
> > --- a/xen/common/sched_credit.c
> > +++ b/xen/common/sched_credit.c
> > @@ -1819
On Mon, 2016-06-20 at 01:48 -0600, Jan Beulich wrote:
> > > > On 18.06.16 at 01:11, wrote:
> > --- a/xen/common/sched_credit.c
> > +++ b/xen/common/sched_credit.c
> > @@ -1819,24 +1819,24 @@ csched_schedule(
> > else
> > snext = csched_load_balance(prv, cpu, snext,
> > &ret.migrated)
On Sat, Jun 18, 2016 at 12:11 AM, Dario Faggioli
wrote:
> In both Credit1 and Credit2, stop considering a pCPU idle,
> if the reason why the idle vCPU is being selected, is to
> do tasklet work.
>
> Not doing so means that the tickling and load balancing
> logic, seeing the pCPU as idle, considers
On 18/06/16 00:11, Dario Faggioli wrote:
In both Credit1 and Credit2, stop considering a pCPU idle,
if the reason why the idle vCPU is being selected, is to
do tasklet work.
Not doing so means that the tickling and load balancing
logic, seeing the pCPU as idle, considers it a candidate
for picki
>>> On 18.06.16 at 01:11, wrote:
> --- a/xen/common/sched_credit.c
> +++ b/xen/common/sched_credit.c
> @@ -1819,24 +1819,24 @@ csched_schedule(
> else
> snext = csched_load_balance(prv, cpu, snext, &ret.migrated);
>
> + out:
> /*
> * Update idlers mask if necessary. When
In both Credit1 and Credit2, stop considering a pCPU idle,
if the reason why the idle vCPU is being selected, is to
do tasklet work.
Not doing so means that the tickling and load balancing
logic, seeing the pCPU as idle, considers it a candidate
for picking up vCPUs. But the pCPU won't actually pi
