Athlon MP vs Athlon XP
Greg Lindahl
lindahl at conservativecomputer.com
Thu Nov 8 12:55:30 PST 2001
On Thu, Nov 08, 2001 at 03:36:08PM -0500, Thomas Lovie wrote:
> I have a innocent question.... Does the kernel have processor affinity
> built in to it yet?
Yes, and has for ages. Use the source, Luke:
/usr/src/linux/kernel/sched.c, function goodness. This is 2.4:
#ifdef CONFIG_SMP
/* Give a largish advantage to the same processor... */
/* (this is equivalent to penalizing other processors) */
if (p->processor == this_cpu)
weight += PROC_CHANGE_PENALTY;
#endif
g
More information about the Beowulf
mailing list