> > One 'really useful feature' that any change should allow for is
> > process affinities (ie tying a process to a physical cpu).
> 
> I should note that we have already been offered a patch to do this, by
> Christian Limpach.  It was rejected -- to my utter disbelief -- by an
> influential developer because, since it packed "which run queue am I
> on" into an integer with one bit per CPU, it would require later revision
> to accomodate systems with more than 32 processors.
> 
> I think this is a canonical example of how the best is the enemy of the
> good.  ;-)  But perhaps when I get a 32-chip system, I will feel otherwise.
> 
> Thor

are you talking about these mails?

http://mail-index.NetBSD.org/tech-kern/2003/07/10/0019.html
http://mail-index.NetBSD.org/tech-kern/2003/07/14/0001.html

i can't read it as "rejected" as you say repeatedly.

YAMAMOTO Takashi