On Fri, Jan 10, 2014 at 12:00:31AM +0100, Piotr Karbowski wrote: > kernel 3.12.5, qemu-1.7.0. > > With vhost=on, qemu shortly after start uses all its assigned memory > (2G for example), without vhost-net enabled it does not go to more > than 200 MB on my idling test virtual machine. 100% reproducable. I > think its not how it should be. > > Full command: > /usr/bin/qemu-system-x86_64 -machine accel=kvm -name _debian -usb > -machine accel=kvm -cpu host,level=9 -smp cpus=2 -vga std -monitor > unix://home/piotr/src/vmninja/sockets/_debian.monitor.socket,server,nowait > -vnc unix://home/piotr/src/vmninja/sockets/_debian.vnc.socket -m > 2048 -boot order=d,menu=on -drive > if=ide,index=2,media=cdrom,id=virtcd -netdev > tap,id=if0,helper=/usr/libexec/qemu-bridge-helper --br=lebridge0 > -device virtio-net-pci,netdev=if0,mac=de:ee:b3:9e:a3:d5,romfile= > -drive > file=/home/piotr/virt/kvm/_debian.raw,if=virtio,cache=writeback
How are you measuring memory usage? Please post the output of the command. Did previous kernel/qemu versions work better? Maybe Michael or Jason can give you hints on debugging this. Stefan
