Re: [Qemu-devel] multiprocessor on kvm

[陳韋任]

On Tue, Nov 08, 2011 at 08:04:44PM +0800, 陳韋任 wrote:
> > I am wondering that when one uses qemu with kvm. How many cores are
> > exposed and available to the guest os ( assuming the host has 4 cores
> > ). is this configurable ?
> 
>   QEMU provides "-smp" option, but those virtual cpus are scheduled in
> round-robin fashion. In other words, it's not real parallelism. I don't
> know if there is any difference with kvm enabled.

  IIRC, kvm uses QEMU for device emulation only. Those virtual cpus are
ran on physical cpus simultaneously.

Regards,
chenwj

-- 
Wei-Ren Chen (陳韋任)
Computer Systems Lab, Institute of Information Science,
Academia Sinica, Taiwan (R.O.C.)
Tel:886-2-2788-3799 #1667