Le 23/09/2013 03:48, Bruce Dubbs a écrit : > For the last couple of days I've been playing around with qemu/kvm. > I've built LFS on it from a Fedora 19 host and I'm disappointed with the > VM performance. > > On my host system, LFS-7.4, I can build binutils with a SBU benchmark of > 129 seconds. Using that same LFS-7.4 system, I run qemu. I settled on > the following to try to enhance performance: > > qemu -enable-kvm -boot c \ > -drive file=/mnt/qemu1/fedora.img,if=virtio \ > -m 2G \ > -cdrom Fedora-19-x86_64-DVD.iso \ > -machine accel=kvm -cpu host \ > -netdev type=tap,script=/etc/qemu-ifup,id=net0 \ > -device virtio-net-pci,netdev=net0 > > 170 s on host (running Debian) and 182s on a VM under qemu (running (B)LFS)
I do not use the virtio interface, but I have -drive file=/mnt/virtualMachines/qemu/blfs.qcow2,cache=writeback I do not remember now how I chose the 'cache' part. But I think it is worth giving it a try. Regards Pierre -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
