On Thu, Aug 01, 2013 at 10:17:57AM +0530, Srikar Dronamraju wrote:
> * Mel Gorman [2013-07-15 16:20:10]:
>
> > A preferred node is selected based on the node the most NUMA hinting
> > faults was incurred on. There is no guarantee that the task is running
> > on that node at the time so this patch
* Mel Gorman [2013-07-15 16:20:10]:
> A preferred node is selected based on the node the most NUMA hinting
> faults was incurred on. There is no guarantee that the task is running
> on that node at the time so this patch rescheules the task to run on
> the most idle CPU of the selected node when
* Mel Gorman [2013-07-31 10:07:27]:
> On Wed, Jul 17, 2013 at 09:31:05AM +0800, Hillf Danton wrote:
> > On Mon, Jul 15, 2013 at 11:20 PM, Mel Gorman wrote:
> > > +static int
> > > +find_idlest_cpu_node(int this_cpu, int nid)
> > > +{
> > > + unsigned long load, min_load = ULONG_MAX;
> > >
On Wed, Jul 17, 2013 at 09:31:05AM +0800, Hillf Danton wrote:
> On Mon, Jul 15, 2013 at 11:20 PM, Mel Gorman wrote:
> > +static int
> > +find_idlest_cpu_node(int this_cpu, int nid)
> > +{
> > + unsigned long load, min_load = ULONG_MAX;
> > + int i, idlest_cpu = this_cpu;
> > +
> > +
On Mon, Jul 15, 2013 at 11:20 PM, Mel Gorman wrote:
> +static int
> +find_idlest_cpu_node(int this_cpu, int nid)
> +{
> + unsigned long load, min_load = ULONG_MAX;
> + int i, idlest_cpu = this_cpu;
> +
> + BUG_ON(cpu_to_node(this_cpu) == nid);
> +
> + rcu_read_lock();
> +
A preferred node is selected based on the node the most NUMA hinting
faults was incurred on. There is no guarantee that the task is running
on that node at the time so this patch rescheules the task to run on
the most idle CPU of the selected node when selected. This avoids
waiting for the balancer
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