Hyperthreading and NUMA on E56XX

[Afox]

Hello,

I have two E56XX CPUs and asking myself what would be the best setup for these in a Multi-KVM environment.

Should I enable Hyperthreading on the Node and NUMA on the KVMs?

I got confused by this statement and hope that someone can recommend anything for best performance on an overpopulated Node.

Thanks in advance,

Afox

 

[wolfgang]

Hi,

AFIK this is no more relevant because the numa scheduler is rewritten.

I would use numa with HT and if you run in problems you can change it every time.

 

[Afox]

hello, I tested it over the last days and what I found is that the power consumption increased remarkably. With HT both CPU need 15 Watt more in total.