On 04/03/2013 01:08 PM, Namhyung Kim wrote:
>> > - for_each_cpu(i, sched_group_cpus(group))
>> > - sgs->group_util += max_rq_util(i);
>> > + for_each_cpu(i, sched_group_cpus(group)) {
>> > + struct rq *rq = cpu_rq(i);
>> > +
>> > + if (burst && rq->nr_running > 1)
>> >
On 04/03/2013 01:08 PM, Namhyung Kim wrote:
- for_each_cpu(i, sched_group_cpus(group))
- sgs-group_util += max_rq_util(i);
+ for_each_cpu(i, sched_group_cpus(group)) {
+ struct rq *rq = cpu_rq(i);
+
+ if (burst rq-nr_running 1)
+ /* use
struct rq *rq = cpu_rq(i);
>> +
>> +if (burst && rq->nr_running > 1)
>> +/* use nr_running as instant utilization */
>> +sgs->group_util += rq->nr_running;
>
> I guess multiplying FULL_UTIL to rq->nr_running here will remove
>
Hi Alex,
On Sat, 30 Mar 2013 22:35:00 +0800, Alex Shi wrote:
> Sleeping task has no utiliation, when they were bursty waked up, the
> zero utilization make scheduler out of balance, like aim7 benchmark.
>
> rq->avg_idle is 'to used to accommodate bursty loads in a dirt simple
> dirt cheap manner'
Hi Alex,
On Sat, 30 Mar 2013 22:35:00 +0800, Alex Shi wrote:
Sleeping task has no utiliation, when they were bursty waked up, the
zero utilization make scheduler out of balance, like aim7 benchmark.
rq-avg_idle is 'to used to accommodate bursty loads in a dirt simple
dirt cheap manner' --
struct rq *rq = cpu_rq(i);
+
+if (burst rq-nr_running 1)
+/* use nr_running as instant utilization */
+sgs-group_util += rq-nr_running;
I guess multiplying FULL_UTIL to rq-nr_running here will remove
special-casing the burst in
Sleeping task has no utiliation, when they were bursty waked up, the
zero utilization make scheduler out of balance, like aim7 benchmark.
rq->avg_idle is 'to used to accommodate bursty loads in a dirt simple
dirt cheap manner' -- Mike Galbraith.
With this cheap and smart bursty indicator, we can
Sleeping task has no utiliation, when they were bursty waked up, the
zero utilization make scheduler out of balance, like aim7 benchmark.
rq-avg_idle is 'to used to accommodate bursty loads in a dirt simple
dirt cheap manner' -- Mike Galbraith.
With this cheap and smart bursty indicator, we can
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