[Linux-aus] HT Xeon and Linux Kernel (was Re:)

[Anshul Gupta]

On 30/01/2004, at 5:59 PM, Stewart Smith wrote:

> On Fri, 2004-01-30 at 16:44, Anshul Gupta wrote:
>>   Checked the specs of the machine, It has 2 processors actually. :-)
>> There is something wrong.
>
> No there isn't. because it's HT, that means that each physical CPU has
> two 'virtual' CPUs (siblings). hence your two processor machine is
> detected as four cpus.

Yeah but the 4 CPUs were only detected when I increased the number of 
CPUs in the kernel to 8. When it was 4, it wasn't detecting 4 virtual 
CPUs.

Why the number should be increased to 8 to get it working right?

Cheers,
Anshul