[Beowulf] [gorelsky@stanford.edu: CCL:dual-coreOpteron275performance]

Mark Hahn hahn at physics.mcmaster.ca
Thu Jul 14 15:10:45 PDT 2005


> taskset is part of schedutils by Robert Love http://rlove.org/schedutils/

it's also worth knowing that sched_setaffinity does all the work (not much!).
for most normal systems, setting affinity (especially to a single core)
is probably going to have bad effects some times.  for instance, interrupt
handling.  which has a similar bitmask-based interface like 
	echo 1 > /proc/irq/0/smp_affinity

I've wondered whether this makes sense to do on opteron systems where 
the IO bridge is attached to a single socket.

regards, mark hahn.




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