racerx at makeworld.com
Sat Mar 26 11:49:11 PST 2005
em1897 at aol.com wrote:
> This is the kind of disinformation I have been
> referring to....
> You'll get much better performance with 1 processor in
> UP mode. I suggest you do some testing.
> -----Original Message-----
> From: Anthony Atkielski <atkielski.anthony at wanadoo.fr>
> To: freebsd-questions at freebsd.org
> Sent: Sat, 26 Mar 2005 19:28:11 +0100
> Subject: Re: hyper threading.
> Perttu Laine writes:
>> I have 3,4ghz ht processor and freebsd shows up only one processors. I
>> suppose it should show two in ht models? so, GENERIC kernel doesn't
>> support it? but should I add to kernel config to enable it? by reading
>> config examples I think this should be enough:
>> options SMP
> Yes, that's all you need. Just add that line, rebuild and reinstall the
> kernel, and you're all set. Works great. Hyperthreading doesn't buy
> you as much as truly separate processors, but it helps you get more bang
> for the buck out of your single processor (depending on the type of
> workload you run).
If you feel someone is in error - feel free to jump in and offer what
you feel to be correct information.
Sometimes sitting back and not correcting someone is far worse then
someone offering information based on what they know, experience, or
what have you.
In this case, by NOT offering the correct information, YOU are just as
much to blame for what you say is going on.
For those of us that don't answer, we either don't know (as is the case
wit myself) OR, they have not had a chance to read the thread.
It is a simple task to make things complex, but a complex
task to make them simple.
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