On Tue, May 06, 2014 at 04:19:21PM -0400, Rik van Riel wrote:
> On 05/06/2014 07:54 AM, Peter Zijlstra wrote:
> > On Fri, May 02, 2014 at 11:19:47AM -0400, Rik van Riel wrote:
> >> As an aside, it also looks like SD_BALANCE_WAKE is set on all domains
^^^^^^^^^^^^^^^
> >> of a NUMA system by default, so even the non-affine wakeup will end
> >> up looking for the lowest load NUMA node to start up on.
> >
> > I can't find it being set on anything by default.
>
> .flags = 1*SD_LOAD_BALANCE
> | 1*SD_BALANCE_NEWIDLE
> | 0*SD_BALANCE_EXEC
> | 0*SD_BALANCE_FORK
> | 0*SD_BALANCE_WAKE
^
last time I checked 0*x was still 0.
> | 0*SD_WAKE_AFFINE
> | 0*SD_SHARE_CPUPOWER
> | 0*SD_SHARE_PKG_RESOURCES
> | 1*SD_SERIALIZE
> | 0*SD_PREFER_SIBLING
> | 1*SD_NUMA
> | sd_local_flags(level)
>
>
> static inline int sd_local_flags(int level)
> {
> if (sched_domains_numa_distance[level] > RECLAIM_DISTANCE)
> return 0;
>
> return SD_BALANCE_EXEC | SD_BALANCE_FORK | SD_WAKE_AFFINE;
> }
No BALANCE_WAKE there
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