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From: | Piotr Karbowski |
Subject: | [Qemu-devel] Enabling vhost-net cause insane high memory usage. |
Date: | Fri, 10 Jan 2014 00:00:31 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 |
Hello, 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
-- Piotr.
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