From owner-freebsd-smp  Wed Nov  7 11:41:30 2001
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To: freebsd-smp@freebsd.org
Subject: magic switch?
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Date: Wed, 07 Nov 2001 14:41:19 -0500
From: Kevin Coffman <kwc@citi.umich.edu>
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I've looked around a bit, but haven't seen this.  Is there a "magic 
switch" that I can flip to disable all but one processor in an 
SMP-enabled kernel on an SMP machine?  We'd like to do some 
measurements comparing performance of an application running on one cpu 
vs. two cpus, without the need to reboot between a UP kernel and SMP 
kernel.  Is this possible?

Thanks,
Kevin


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