Re: [Users] VirtIO disk latency
On Jan 9, 2014, at 3:16 AM, Markus Stockhausen <stockhausen(a)collogia.de> wrote:
We see a quite a heavy latency penalty using KVM VirtIO disks in comparison
to ESX. Doing one I/O onto disk inside a VM usually adds 370us of overhead in
the virtualisation layer. This has been tested with VirtIO-SCSI and windows
guest (2K3). More here (still now answer yet):
It would be interesting to see you do the same tests on virtio-blk instead of
virtio-scsi.