Le 23/09/2013 18:10, Bruce Dubbs a écrit : > On the pdf of the above, it measured KVM I/O at about 60% of the host. > See pages 56-58. That seems to be consistent with my results. > > It is really amazing, because for the SBU benchmark, I consistently get not more than a 10 % increase of the timings with qemu. I tried also Arch Ubuntu on the VM, (everything -j1, with or without 'cache=writeback', on a qcow2 format.
On this host (core i5), I get 158 (+-2) s on the host and 170 (+-5) s on the WM. Both with -j1 of course. Here is the qemu command I use: /usr/bin/qemu-system-x86_64 \ -monitor stdio \ -smp 4 -cpu Nehalem \ -soundhw ac97 \ -k fr \ -enable-kvm \ -m 3915 \ -drive file=/mnt/virtualfs/aqemu/blfs.qcow2,cache=writeback \ -cdrom /mnt/virtualfs/aqemu/grub-img.iso \ -boot order=c,menu=on \ -net nic,vlan=0,model=e1000 -net user,vlan=0,hostfwd=tcp::2222-10.0.2.9:22 \ -name "lfs" $* Regards Pierre -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
