Re: [libvirt] [PATCHv2] Enable tuning of qemu network tap device "sndbuf" size

2011-01-14 Thread Laine Stump
On 01/14/2011 02:21 PM, Eric Blake wrote: On 01/14/2011 10:35 AM, Laine Stump wrote: The sndbuf value is put inside a element of each in the domain. The intent is that further tunable settings will also be placed inside this element. ... 0 ...

Re: [libvirt] [PATCHv2] Enable tuning of qemu network tap device "sndbuf" size

2011-01-14 Thread Eric Blake
On 01/14/2011 10:35 AM, Laine Stump wrote: > The sndbuf value is put inside a element of each in > the domain. The intent is that further tunable settings will also be > placed inside this element. > > >... > > 0 >... > > > --- > > Changes fr

[libvirt] [PATCHv2] Enable tuning of qemu network tap device "sndbuf" size

2011-01-14 Thread Laine Stump
This is in response to a request in: https://bugzilla.redhat.com/show_bug.cgi?id=665293 In short, under heavy load, it's possible for qemu's networking to lock up due to the tap device's default 1MB sndbuf being inadequate. adding "sndbuf=0" to the qemu commandline -netdevice option will allev