On Wed, 12 Dec 2012 14:26:44 +0800, Alex Shi wrote:
> On 12/12/2012 12:41 PM, Preeti U Murthy wrote:
>> Also why can't p->se.load_avg_contrib be used directly? as a return
>> value for task_h_load_avg? since this is already updated in
>> update_task_entity_contrib and update_group_entity_contrib.
>
> No, only non task entity goes to update_group_entity_contrib. not task
> entity.
???
But task entity goes to __update_task_entity_contrib()?
/* Compute the current contribution to load_avg by se, return any delta */
static long __update_entity_load_avg_contrib(struct sched_entity *se)
{
long old_contrib = se->avg.load_avg_contrib;
if (entity_is_task(se)) {
__update_task_entity_contrib(se);
} else {
__update_tg_runnable_avg(&se->avg, group_cfs_rq(se));
__update_group_entity_contrib(se);
}
return se->avg.load_avg_contrib - old_contrib;
}
Thanks,
Namhyung
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