On Thu, Apr 4, 2019 at 4:31 PM Aubrey Li wrote:
>
> On Fri, Feb 22, 2019 at 12:42 AM Peter Zijlstra wrote:
> >
> > On Thu, Feb 21, 2019 at 04:19:46PM +, Valentin Schneider wrote:
> > > Hi,
> > >
> > > On 18/02/2019 16:56, Peter Zijlstra wrote:
> > > [...]
> > > > +static bool try_steal_cookie
On Fri, Feb 22, 2019 at 12:42 AM Peter Zijlstra wrote:
>
> On Thu, Feb 21, 2019 at 04:19:46PM +, Valentin Schneider wrote:
> > Hi,
> >
> > On 18/02/2019 16:56, Peter Zijlstra wrote:
> > [...]
> > > +static bool try_steal_cookie(int this, int that)
> > > +{
> > > + struct rq *dst = cpu_rq(thi
On 21/02/2019 16:47, Peter Zijlstra wrote:
[...]
>>> IIUC, we're trying to find/steal tasks matching the core_cookie from other
>>> rqs because dst has been cookie-forced-idle.
>>>
>>> If the p we find isn't running, what's the meaning of core_occupation?
>>> I would have expected it to be 0, but w
On Thu, Feb 21, 2019 at 05:41:46PM +0100, Peter Zijlstra wrote:
> On Thu, Feb 21, 2019 at 04:19:46PM +, Valentin Schneider wrote:
> > Hi,
> >
> > On 18/02/2019 16:56, Peter Zijlstra wrote:
> > [...]
> > > +static bool try_steal_cookie(int this, int that)
> > > +{
> > > + struct rq *dst = cpu_r
On Thu, Feb 21, 2019 at 04:19:46PM +, Valentin Schneider wrote:
> Hi,
>
> On 18/02/2019 16:56, Peter Zijlstra wrote:
> [...]
> > +static bool try_steal_cookie(int this, int that)
> > +{
> > + struct rq *dst = cpu_rq(this), *src = cpu_rq(that);
> > + struct task_struct *p;
> > + unsigned
Hi,
On 18/02/2019 16:56, Peter Zijlstra wrote:
[...]
> +static bool try_steal_cookie(int this, int that)
> +{
> + struct rq *dst = cpu_rq(this), *src = cpu_rq(that);
> + struct task_struct *p;
> + unsigned long cookie;
> + bool success = false;
> +
> + local_irq_disable();
> +
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