Since I moved from FreeBSD I make assumptions, I thought it is enabled by
default which seems not to be case. I will build a custom kernel then (or is
there a better way !? ) But my question is, why UP is proffered over SMP ?!
is there any specific reason !? Does DFBSD perform better in UP rather than
SMP mode ?! I just read that UP is the default mode forever (
http://www.shiningsilence.com/dbsdlog/2010/10/26/6670.html), it is
interesting to know the reason though.

Thanks,
Saman

On Thu, Feb 17, 2011 at 1:12 PM, Jan Lentfer <[email protected]> wrote:

> Saman Barghi schrieb:
>
>  I wanted to know if DragonFlyBSD supports Hyper threading or not. I did
>> some benchmarking recently and it seems that on a Xeon dual core with 2
>> virtual cpu per core, DFBSD only scale to 2 threads and after that the
>> number of transactions/second dorps (using sysbench oltp). So does that mean
>> DFBSD does not support Hyperthreading !? If that is the case, I need to
>> perform the benchmarks on a different machine without hyper threading.
>> Please kindly advise.
>>
>
> Simple question first: Did you install a SMP Kernel?
>
> Jan
>

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