* Mel Gorman <[email protected]> [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 <[email protected]> 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(); > > > + for_each_cpu(i, cpumask_of_node(nid)) { > > > > Check allowed CPUs first if task is given? > > > > If the task is not allowed to run on the CPUs for that node then how > were the NUMA hinting faults recorded? >
But still we could check if the task is allowed to run on a cpu before we capture the load of the cpu. This would avoid us trying to select a cpu whose load is low but which cannot run this task. > -- > Mel Gorman > SUSE Labs > -- Thanks and Regards Srikar Dronamraju -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
