On 15 September 2014 12:45, Morten Rasmussen wrote:
> On Thu, Sep 11, 2014 at 03:04:44PM +0100, Peter Zijlstra wrote:
>> On Thu, Sep 11, 2014 at 03:07:52PM +0200, Vincent Guittot wrote:
>> > > Also I'm not entirely sure I like the usage, utilization names/metrics.
>> > > I would suggest to reverse
On Thu, Sep 11, 2014 at 03:04:44PM +0100, Peter Zijlstra wrote:
> On Thu, Sep 11, 2014 at 03:07:52PM +0200, Vincent Guittot wrote:
> > > Also I'm not entirely sure I like the usage, utilization names/metrics.
> > > I would suggest to reverse them. Call the pure running number
> > > 'utilization' an
On Thu, Sep 11, 2014 at 01:34:12PM +0100, Peter Zijlstra wrote:
> > @@ -4514,6 +4519,17 @@ static int select_idle_sibling(struct task_struct
> > *p, int target)
> > return target;
> > }
> >
> > +static int get_cpu_utilization(int cpu)
> > +{
> > + unsigned long usage = cpu_rq(cpu)->cfs.us
On 11 September 2014 21:17, Nicolas Pitre wrote:
>>
>> Any other opinions before Vince goes and applies sed on patches? ;-)
>
> I don't mind either way, but for sure someone (possibly me) is going to
> confuse the two soon enough.
>
> Please include in the code some formal definition in the contex
On Thu, 11 Sep 2014, Peter Zijlstra wrote:
> On Thu, Sep 11, 2014 at 03:07:52PM +0200, Vincent Guittot wrote:
> > > Also I'm not entirely sure I like the usage, utilization names/metrics.
> > > I would suggest to reverse them. Call the pure running number
> > > 'utilization' and this scaled with c
On Thu, Sep 11, 2014 at 03:07:52PM +0200, Vincent Guittot wrote:
> > Also I'm not entirely sure I like the usage, utilization names/metrics.
> > I would suggest to reverse them. Call the pure running number
> > 'utilization' and this scaled with capacity 'usage' or so.
>
> ok. i can invert 'usage'
On 11 September 2014 14:34, Peter Zijlstra wrote:
> On Tue, Aug 26, 2014 at 01:06:53PM +0200, Vincent Guittot wrote:
>> Monitor the utilization level of each group of each sched_domain level. The
>> utilization is the amount of cpu_capacity that is currently used on a CPU or
>> group of CPUs. We u
On Tue, Aug 26, 2014 at 01:06:53PM +0200, Vincent Guittot wrote:
> Monitor the utilization level of each group of each sched_domain level. The
> utilization is the amount of cpu_capacity that is currently used on a CPU or
> group of CPUs. We use the usage_load_avg to evaluate this utilization level
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