[Users] VirtIO disk latency

[Sander Grendelman]

On Thu, Jan 9, 2014 at 10:16 AM, Markus Stockhausen
<stockhausen at collogia.de> wrote:
...
> - access NFS inside the hypervisor - 12.000 I/Os per second - or 83us latency
> - access DISK inside ESX VM that resides on NFS - 8000 I/Os per second - or 125us latency
> - access DISK inside OVirt VM that resides on NFS - 2200 I/Os per second - or 450us latency

I can do a bit of testing on local disk and FC (with some extra setup
maybe also NFS).
What is your exact testing method? ( commands, file sizes, sofware
versions, mount options etc.)