Its a matter of time scales. Leaving a cpu idle for 60 seconds with two
jobs on another CPU is bad on a conventional SMP box - by then cache
affinity is noise in the efficiency graph.
The same is going to be true for dynamic load balancing - if you are talking
about this sort of balancing on large enough timescales it will make sense
- true it may be every 30 minutes and you may try to do minimal movement
-
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