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