Bugs item #2988248, was opened at 2010-04-16 11:46 Message generated for change (Comment added) made by You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2988248&group_id=180599 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Arseny Klimovsky (ruclen) Assigned to: Nobody/Anonymous (nobody) Summary: Windows XP x64 cannot use more than 2 cores Initial Comment: I'm using Ubuntu 9.10 with kernel 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 04:38:19 UTC 2010 x86_64 GNU/Linux Processor Intel(R) Core(TM) i7 CPU 975 @ 3.33GHz 4 cores, HyperThreading enabled, so in host linux I see 8 CPUs. QEMU-KVM version: qemu-kvm-0.11.0 I'm running guest Windows XP Pro x64 SP2 KVM command: /usr/bin/kvm -S -M pc-0.11 -m 2048 -smp 8 -name virtual1 -uuid *** -monitor unix:/var/run/libvirt/qemu/virtual1.monitor,server,nowait -localtime -boot c -drive file=,if=ide,media=cdrom,index=0 -drive file=,if=ide,media=cdrom,index=2 -drive file=***/virtual1.img,if=virtio,index=0,boot=on -net nic,macaddr=***,vlan=0,model=virtio,name=virtio.0 -net tap,fd=17,vlan=0,name=tap.0 -serial pty -parallel none -usb -usbdevice tablet -vnc 127.0.0.1:0 -k en-us -vga cirrus Inside the VM in device manager I see 8 CPUs, but actually everything else make me think that only 2 cores are used: 1. In task manager I see 2 graphs for CPU load 2. One core application has 50% cpu load. 3. In host machine htop shows only 2 cores are loaded (when multiple heavy-load processes are run in VM). If I use "-smp 4" instead of "-smp 8", the behavior is the same. So, why I see such behavior? ---------------------------------------------------------------------- Comment By: https://www.google.com/accounts () Date: 2010-04-16 12:10 Message: as far as I remember the socket/core feature is not in default qemu-kvm-0.11.0 so as winxp sees only 2 sockets, cores are ignored (more is not displayed due to license limitation). => upgrade to newer KVM ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2988248&group_id=180599 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
