Re: [Xen-users] gaming on multiple OS of the same machine?

[James Harper <james.harper@xxxxxxxxxxxxxxxx>]

> 
> Intel Core i7 processors have hyperthreading, a 4 core i7 is the equivalent of
> an 8-core AMD, so if Andrew has had success with an 8-core AMD CPU and
> no resource issues, you might be able to get by with a 4-core i7 (a 6 core i7
> would be 12 vcores), but I would be hesitant to assign all the cores to HVM's.
> 

Be careful with this... a hyperthread is not equivalent to a real thread. Last 
time I checked, the hyperthread only ran while the main thread was stalled 
(waiting for memory fetch or something). Before the various schedulers 
(Linux/Windows) learnt about how to manage hyperthreads there were cases where 
performance was worse with hyperthreading turned on. Even the last server build 
I did for running a specific application says "make sure hyperthreading is 
disabled" in the setup notes.

James

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users