On Sun, 9 Jul 2000 15:51:34 -0400,
willy@thepuffingroup.com wrote:
>we have a lot of arrays which are declared as being NR_CPUS elements large.
>this is clearly suboptimal on the majority of SMP machines which have
>only 2 CPUs. i therefore believe this should be a config option. what
>do you think to this patch?
>+ int 'Maximum number of CPUs to support (1-32)' CONFIG_SMP_CPUS 2
NR_CPUS is not the number of processors. It is the highest processor
number+1; processor numbers do not have to be contiguous. On a machine
that has 2 processors numbered 1 and 4, NR_CPUS must be 5.
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