Ingo Molnar wrote:
Acked-by: Ingo Molnar <[EMAIL PROTECTED]>
note that no matter how much scheduler logic, in the end cross-scheduling of tasks between nodes on NUMA will always have a permanent penalty (i.e. the 'migration cost' is 'infinity' in the long run), so the primary focus _hast to be_ on 'get it right initially' When tasks must spill over to other nodes will always remain a special case. So balance-on-fork/exec/[clone] definitely needs to be aware of the full domain tree picture.
Yes, well put. I imagine this will only become more important as there becomes more push towards multiprocessing machines, and the need for higher memory bandwidth and lower latency to CPUs.
-- SUSE Labs, Novell Inc.
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