Bug#665046: qemu-kvm: bad network performance using vhost and macvtap

2012-04-16 Thread Michael Tokarev
On 22.03.2012 19:05, Michael Tokarev wrote: > On 22.03.2012 15:06, Anthony Bourguignon wrote: >> Package: qemu-kvm >> Version: 1.0+dfsg-9 >> Severity: important >> >> Hello, >> >> I encountered an issue with version 1.0+dfsg-9 of qemu-kvm (it worked fine >> with 1.0+dfsg-8). The network performanc

Bug#665046: qemu-kvm: bad network performance using vhost and macvtap

2012-03-22 Thread Anthony Bourguignon
Le jeudi 22 mars 2012 à 19:12 +0400, Michael Tokarev a écrit : > severity 665046 wishlist > tags 665046 + unreproducible > thanks > > On 22.03.2012 19:05, Michael Tokarev wrote: > [] > > There was no network-related changes between -8 and -9. > > Macvtap performance has always been awful from the

Bug#665046: qemu-kvm: bad network performance using vhost and macvtap

2012-03-22 Thread Michael Tokarev
On 22.03.2012 19:58, Anthony Bourguignon wrote: [] >> I tested macvtap device on -8 and -9 briefly (had to tweak >> my regular bridge setup quite a bit for that to work), and >> I see exactly the same (bad) performance with both versions. > I've just tested again. I ran a virtual machine with -8 a

Bug#665046: qemu-kvm: bad network performance using vhost and macvtap

2012-03-22 Thread Michael Tokarev
severity 665046 wishlist tags 665046 + unreproducible thanks On 22.03.2012 19:05, Michael Tokarev wrote: [] > There was no network-related changes between -8 and -9. > Macvtap performance has always been awful from the ground up, > but this is due to kernel not qemu. Reportedly it become a > bit

Bug#665046: qemu-kvm: bad network performance using vhost and macvtap

2012-03-22 Thread Michael Tokarev
On 22.03.2012 15:06, Anthony Bourguignon wrote: > Package: qemu-kvm > Version: 1.0+dfsg-9 > Severity: important > > Hello, > > I encountered an issue with version 1.0+dfsg-9 of qemu-kvm (it worked fine > with 1.0+dfsg-8). The network performances are really bad when I'm using > vhost and macvta

Bug#665046: qemu-kvm: bad network performance using vhost and macvtap

2012-03-22 Thread Anthony Bourguignon
Package: qemu-kvm Version: 1.0+dfsg-9 Severity: important Hello, I encountered an issue with version 1.0+dfsg-9 of qemu-kvm (it worked fine with 1.0+dfsg-8). The network performances are really bad when I'm using vhost and macvtap (bridge mode). Here is the cmdline launch by libvirt : /usr/bin