Matthias Scheler wrote:
> On Mon, Dec 18, 2006 at 05:44:45PM +1100, Carl Brewer wrote:
>> I'm curious to know how effective it is on NetBSD?
> 
> Not very. Depending on the workload of you system the overhead from the
> locking in an SMP kernel might not be worth the performance gain.
> 
>> I have a couple of RHEL servers that, when running top, show
>> multiple cpu's as the thread engines (I assume?), ...
> 
> The two virtual CPUs provided by HT appear as two physical CPUs to the
> operating system.
> 
>> ... but top on NetBSD 3.1 doesn't show this.
> 
> Are you using the "GENERIC.MPACPI" kernel or a kernel based on that
> configuration? Other kernels will not utilize HT.

I wasn't, but am running it now to see how it goes.  Thankyou

Carl