Port-xen archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: multiple vcpus in hvm domu?

Em 24/04/2014, à(s) 10:55, Manuel Bouyer <bouyer%antioche.eu.org@localhost> escreveu:

On Thu, Apr 24, 2014 at 08:15:27AM -0500, david l goodrich wrote:
OpenBSD and Windows XP.  An off-list conversation reminded me
that some OSes require MP-capable kernels.  Switching OpenBSD to
boot from bsd.mp shows two CPUs in the dmesg before it core
dumps, which isn't Xen's problem.  Windows XP continues to show
only one cpu in performance manager, but shows two processors in
device manager.  I don't know why there's only one processor in
perf manager, but I seem to be mistaken and xen seems to be doing
the right thing.

windows (at last up to XP/2003, I didn't test newer versions) detects the
hardware UP/SMP capabilities at install time, and can't be changed after
without a reinstall. So if you installed XP on a UP system, it won't be able
to use more than one CPU after.

Manuel Bouyer <bouyer%antioche.eu.org@localhost>
    NetBSD: 26 ans d'experience feront toujours la difference

When your vm is running if you execute

# xm vcpu-list

what the result?

In this case, my win2k8 have 3 vcpus (it’s a linux dom0,  but on netbsd have same case).

xm vcpu-list
Name                                ID  VCPU   CPU State   Time(s) CPU Affinity
Domain-0                             0     0     0   r--   37881.0 0
win2k8                              23     0     3   r--     393.7 any cpu
win2k8                              23     1     2   -b-     276.2 any cpu
win2k8                              23     2     1   -b-     227.2 any cpu


Home | Main Index | Thread Index | Old Index