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sched/fair: Do not compute NUMA Balancing stats unnecessarily during lb
Aggregate nr_numa_running and nr_preferred_running when load balancing at NUMA domains only. While at it, also move the aggregation below the idle_cpu() check since an idle CPU cannot have any preferred tasks. Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Shrikanth Hegde <sshegde@linux.ibm.com> Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org> Link: https://lore.kernel.org/r/20241223043407.1611-7-kprateek.nayak@amd.com
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