No of Logical Processors

[sakurai_tabi]

I have a ESXi 4.1.0

And I have search the model Intel, has 8 threads per core. so why the logical processors not 32 ??

[Alistar]

Hi,

you have misunderstood the information. Intel has always made two-threads-per-core processor, so you have 4 Physical cores and 4 Hyper-Threaded ones, making it a total of 8 logical cores.

[TomHowarth]

Logical CPUs relate to the number of addressable processors from a virtual perspective, not threads that are able to be run

so you have 2 processors with 8 cores this equates to 16 logical CPU.  if you had HyperThreading enabled your Logical Processor count would be 32

[sakurai_tabi]

oh ~ I much more understand now!

thanks

I have read some link from the internet recommand not to enable HT on ESXi host. is it true ??

[TomHowarth]

That was the recommendation with the first generation of HT enabled processors, but not now.  I always activate HT now.