From: Piotr Karbowski <piotr.karbowski@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Enabling vhost-net cause insane high memory usage.
Date: Fri, 10 Jan 2014 00:00:31 +0100 [thread overview]
Message-ID: <52CF2A0F.1060305@gmail.com> (raw)
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.
next reply other threads:[~2014-01-09 23:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-09 23:00 Piotr Karbowski [this message]
2014-01-15 2:41 ` [Qemu-devel] Enabling vhost-net cause insane high memory usage Stefan Hajnoczi
2014-01-15 10:03 ` Michael S. Tsirkin
2014-01-15 21:36 ` Piotr Karbowski
2014-01-15 21:44 ` Piotr Karbowski
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