RE: Feature proposal: Add page-per-vq flag to the 'driver' element of virtio devices

2021-04-19 Thread Gavi Teitz
On Monday, April 19, 2021 18:10 Jonathon Jongsma wrote: >On Mon, 19 Apr 2021 14:16:59 +0200 >Michal Privoznik wrote: > >> On 4/18/21 10:08 AM, Gavi Teitz wrote: >> > Hi, >> > >> > The page-per-vq flag is important for vdpa with vhost-user >> > performance [1]. >> > >> > Currently there is

Re: Feature proposal: Add page-per-vq flag to the 'driver' element of virtio devices

2021-04-19 Thread Jonathon Jongsma
On Mon, 19 Apr 2021 14:16:59 +0200 Michal Privoznik wrote: > On 4/18/21 10:08 AM, Gavi Teitz wrote: > > Hi, > > > > The page-per-vq flag is important for vdpa with vhost-user > > performance [1]. > > > > Currently there is no way in libvirt to set it in the xml > > page-per-vq except with qemu

Re: Feature proposal: Add page-per-vq flag to the 'driver' element of virtio devices

2021-04-19 Thread Michal Privoznik
On 4/18/21 10:08 AM, Gavi Teitz wrote: Hi, The page-per-vq flag is important for vdpa with vhost-user performance [1]. Currently there is no way in libvirt to set it in the xml page-per-vq except with qemu args, like so: Yeah, we view extra cmd line arguments as unsupported. Are there