On Mon, Oct 22, 2012 at 01:10:40PM +0200, Peter Zijlstra wrote:
> On Sat, 2012-10-20 at 21:06 +0200, Andrea Righi wrote:
> > @@ -383,13 +383,7 @@ struct rq {
> > struct list_head leaf_rt_rq_list;
> > #endif
> >
>
> > + unsigned long __percpu *nr_uninterruptible;
>
> This is
On Sat, 2012-10-20 at 21:06 +0200, Andrea Righi wrote:
> @@ -383,13 +383,7 @@ struct rq {
> struct list_head leaf_rt_rq_list;
> #endif
>
> + unsigned long __percpu *nr_uninterruptible;
This is O(nr_cpus^2) memory..
> +unsigned long nr_uninterruptible_cpu(int cpu)
> +{
> +
On Sat, 2012-10-20 at 21:06 +0200, Andrea Righi wrote:
@@ -383,13 +383,7 @@ struct rq {
struct list_head leaf_rt_rq_list;
#endif
+ unsigned long __percpu *nr_uninterruptible;
This is O(nr_cpus^2) memory..
+unsigned long nr_uninterruptible_cpu(int cpu)
+{
+
On Mon, Oct 22, 2012 at 01:10:40PM +0200, Peter Zijlstra wrote:
On Sat, 2012-10-20 at 21:06 +0200, Andrea Righi wrote:
@@ -383,13 +383,7 @@ struct rq {
struct list_head leaf_rt_rq_list;
#endif
+ unsigned long __percpu *nr_uninterruptible;
This is O(nr_cpus^2)
Account load average, nr_running and nr_uninterruptible tasks per-cpu.
The new task_struct attribute on_cpu_uninterruptible is added to
properly keep track of the cpu at deactivate time, when the task is set
to the uninterruptible sleep state.
Moreover, rq->nr_uninterruptible is converted to a
Account load average, nr_running and nr_uninterruptible tasks per-cpu.
The new task_struct attribute on_cpu_uninterruptible is added to
properly keep track of the cpu at deactivate time, when the task is set
to the uninterruptible sleep state.
Moreover, rq-nr_uninterruptible is converted to a
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