6.1 smp kernel on uniprocessor

Kevin Oberman oberman at es.net
Fri Jul 28 18:55:04 UTC 2006


> Date: Fri, 28 Jul 2006 14:44:38 -0400
> From: Stephen Clark <Stephen.Clark at seclark.us>
> Sender: owner-freebsd-stable at freebsd.org
> 
> Hi list,
> 
> Should a 6.1 smp compiled kernel run Ok on a uniprocessor?
> 
> We ship both single core and dual core systems and would like to use 
> only one
> kernel.

It should run on a uniprocessor just fine, but I believe that there will
be a performance penalty as and SMP kernel does additional work for
synchronization that is not needed on single CPUs.
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net			Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4  EADA 927D EBB3 987B 3751


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