that is interesting. i use my opensuse 13.1 with i7 4cores.cpu and run win7 as guest. win7 show 4 cpus correctly. guess the problem with fedora kvm or the xeon cpu. will try later to confirm On Jul 24, 2014 12:35 AM, "Jakob Bohm" <jb-gnumli...@wisemo.com> wrote:
> On 7/23/2014 6:22 PM, Sai Prajeeth wrote: > >> Try setting sockets=6,cores=1? I had this issue when running Solaris as >> guest. For some reason Solaris never detected any of the cores. It could >> only detect the sockets. >> >> >> Unlikely to work. Windows 7 (unlike the more expensive server licenses > for the same kernel) enforces a license restriction of max 2 physical > CPUs, each with unlimited cores (subject to the kernel design maximum > of at least 32). > > But try looking at the command line of the running qemu process. Does > it actually specify 2 sockets with 4 cores each, or were the settings > somehow mistranslated from libvirt XML to qemu command line? > > Also, if you are using a computer with more than 2 physical sockets, > you may want to check if kvm passes through the physical or the command > line CPU topology to the guest. > > On Wed, Jul 23, 2014 at 9:38 PM, Scott Zhang <macromars...@gmail.com >> <mailto:macromars...@gmail.com>> wrote: >> >> __ >> __ >> Dear all: >> I have been trying this for whole afternoon and whole night. I >> have installed windows 7 as guest in kvm using virt-manager which >> use qemu. And after I alloc it 6 vcpus, I noticed win7 only see 2 >> cpus in task manager. But in device manager, it shows 6 cpus. After >> google a lot, looks many people say they workaround this by setting >> the topology of CPU, which is technical correct. >> But when I try to set sockets=2,cores=4 and several vairable >> pairs. None is working. Win7 only see 2 at most. I am using fedora >> 20 with kernel 3.15 and the default qemu. >> Can any one help? >> Thanks >> Regards >> 2014-07-24 >> ------------------------------------------------------------ >> ------------ >> Scott Zhang >> __ >> >> >> > > Enjoy > > Jakob > -- > Jakob Bohm, CIO, Partner, WiseMo A/S. http://www.wisemo.com > Transformervej 29, 2730 Herlev, Denmark. Direct +45 31 13 16 10 > This public discussion message is non-binding and may contain errors. > WiseMo - Remote Service Management for PCs, Phones and Embedded > >
