Re: [one-users] virtio-blk-data-plane and x-data-plane=on

2013-09-07 Thread Shankhadeep Shome
Also there has been some work on vhost-blk as well as vhost-scsi integrated with LIO so this work seems like more of an offshoot that the general direction of KVM performance. On Sat, Sep 7, 2013 at 1:41 AM, Erico Augusto Cavalcanti Guedes e...@cin.ufpe.br wrote: Hi, 2013/9/5 Ruben S.

Re: [one-users] virtio-blk-data-plane and x-data-plane=on

2013-09-06 Thread Erico Augusto Cavalcanti Guedes
Hi, 2013/9/5 Ruben S. Montero rsmont...@opennebula.org Hi I haven't tried this myself either, but if there is such an improvement we could add a hint at the KVM driver documentation. I've a concern about the first sentence of the post: Data plane is suitable for LVM or raw image file

Re: [one-users] virtio-blk-data-plane and x-data-plane=on

2013-09-05 Thread Ruben S. Montero
Hi I haven't tried this myself either, but if there is such an improvement we could add a hint at the KVM driver documentation. I've a concern about the first sentence of the post: Data plane is suitable for LVM or raw image file configurations where live migration and advanced block features

Re: [one-users] virtio-blk-data-plane and x-data-plane=on

2013-09-01 Thread Valentin Bud
Hi Erico, This is the first time I hear about virtio-blk-data-plane. Thank you for the info, looks like this feature brings notable IO improvements. You can try to use the RAW Section [1] to pass special attributes to the underlying hypervisor. I have found a blog post [2] in which there is a

[one-users] virtio-blk-data-plane and x-data-plane=on

2013-08-31 Thread Erico Augusto Cavalcanti Guedes
Hello, on [1], page 10, section 2.3 - KVM Configuration: To achieve the best possible I/O rates for the KVM guest, the virtio-blk-data-plane feature was enabled for each LUN (a disk or partition) that was passed from the host to the guest. To enable virtio-blk-data-plane for a LUN being passed to