Re: [Qemu-devel] vm performance degradation after kvm live migration or save-restore with EPT enabled

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On Mon, Aug 05, 2013 at 09:09:56AM +0000, Zhanghaoyu (A) wrote:
> The QEMU command line (/var/log/libvirt/qemu/[domain name].log),
> LC_ALL=C PATH=/bin:/sbin:/usr/bin:/usr/sbin HOME=/ QEMU_AUDIO_DRV=none /usr/local/bin/qemu-system-x86_64 -name ATS1 -S -M pc-0.12 -cpu qemu32 -enable-kvm -m 12288 -smp 4,sockets=4,cores=1,threads=1 -uuid 0505ec91-382d-800e-2c79-e5b286eb60b5 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ATS1.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime -no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/opt/ne/vm/ATS1.img,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x8,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=20,id=hostnet0,vhost=on,vhostfd=21 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:e0:fc:00:0f:00,bus=pci.0,addr=0x3,bootindex=2 -netdev tap,fd=22,id=hostnet1,vhost=on,vhostfd=23 -device virtio-net-pci,netdev=hostnet1,id=net1,mac=00:e0:fc:01:0f:00,bus=pci.0,addr=0x4 -netdev tap,fd=24,id=hostnet2,vhost=on,vhostfd=25 -device virtio-net-pci,netdev=hostnet2,id=net2,mac=00:e0:fc:02:0f:00,bus=pci.0,addr=0x5 -netdev tap,fd=26,id=hostnet3,vhost=on,vhostfd=27 -device virtio-net-pci,netdev=hostnet3,id=net3,mac=00:e0:fc:03:0f:00,bus=pci.0,addr=0x6 -netdev tap,fd=28,id=hostnet4,vhost=on,vhostfd=29 -device virtio-net-pci,netdev=hostnet4,id=net4,mac=00:e0:fc:0a:0f:00,bus=pci.0,addr=0x7 -netdev tap,fd=30,id=hostnet5,vhost=on,vhostfd=31 -device virtio-net-pci,netdev=hostnet5,id=net5,mac=00:e0:fc:0b:0f:00,bus=pci.0,addr=0x9 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -vnc *:0 -k en-us -vga cirrus -device i6300esb,id=watchdog0,bus=pci.0,addr=0xb -watchdog-action poweroff -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0xa
> 
Which QEMU version is this? Can you try with e1000 NICs instead of
virtio?

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			Gleb.
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