Re: [Qemu-discuss] Specify number of cores for the guest

[Lukas Straub]

Hello Mahmood,
That's because Qemu by default presents each CPU with it's own Socket
and Non-Server Windows (because of Licensing Reasons) supports only one
Socket. You should set it like: -smp cpus=1,cores=5
See https://qemu.weilnetz.de/doc/qemu-doc.html#index-_002dsmp

Regards,
Lukas Straub

On Sun, 2 Dec 2018 18:38:04 +0000 (UTC)
Mahmood Naderan <address@hidden> wrote:

> Hi,
> I use the following command. Although I have specified 5 cores, in
> the windows guest, I see only one core in the task manager. May I
> know what is wrong? qemu-system-x86_64 -smp 5 -m 4096 -cpu Opteron_G5
> -hda qemu-vm/win7_64.img -boot c  -usbdevice tablet -enable-kvm
> -device e1000,netdev=host_files -netdev
> user,net=10.0.2.0/24,id=host_files,restrict=off,smb=/export/home/theuser,smbserver=10.0.2.4
> 
> 
> Regards,
> Mahmood