Re: [Xen-users] what makes a good xen machine?

[tim Doyle <tim@xxxxxxxxxxxx>]

Whats the official way to pin a hyperthread to dom0?

xm pincpu 0 dom0?

Thanks,
-Tim

--
Timothy Doyle
CEO
Quantact Hosting Solutions, Inc.
tim@xxxxxxxxxxxx
http://www.quantact.com



M.A. Williamson wrote:

> Well...
>
> It all depends on what you're doing. There are a few rules of thumb, 
> though:
> * Hyperthreading helps (though not essential) - if dom0 can have a 
> dedicated hyperthread, it can run all the time servicing other domains 
> with having to be context-switched in and out. * You need enough 
> memory to give *each* virtual machine (including dom0), plus some 
> extra for Xen itself. Because the memory is hard-partitioned (you 
> can't overcommit) you need to have enough for all the domains. * 
> Processor speed needs to be enough to cope with the computation you're 
> doing across all the virtual machines (+ a bit extra for overheads).
> For very demanding network loads (small packets at GigE line rate), 
> you need lots of CPU (i.e. true SMP) but since this is a pessimal 
> case, its unlikely you have a workload that requires it.
> Cheers,
> Mark
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users