[Users] Experience with low cost NFS-Storage as VM-Storage?

[Markus Stockhausen]

> Von: squadra [squadra at gmail.com]
> Gesendet: Donnerstag, 9. Januar 2014 09:30
> An: Markus Stockhausen
> Cc: Karli Sjöberg; users at ovirt.org
> Betreff: Re: [Users] Experience with low cost NFS-Storage as VM-Storage?
>
> try it, i bet that you will get better latency results with proper configured iscsitarget/initiator. 

I guess you did not take time to read the hole post. The latency I speak
of comes ontop the NFS latency. So my setup has

- 83us latency per I/O in the hypervisor on a NFS share
- 450us latency per I/O in the VM on a disk hosted on the same NFS share

If ISCSI could reduce latency to 40us instead of 83us in our wishfulst dreams
the QEMU penalty hits too hard.

Markus
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