On Thu, Nov 30, 2017 at 10:39 PM, Wesley Stewart <wstewart3@gmail.com> wrote:
(Writing TO the NAS was fairly consistent)Writing to the Windows Guest had a very "Fast and then slow, fast and then slow" type of throughput. I took a few screenshots:Writing TOO the NAS worked about the same. Perhaps a little slower but at least had a steady 250-300 MB/s.For my second test, I decided to mount the NVMe drive on the CentOS ovirt host and make it a local datastore. I migrated my Windows Guest to it, and decided to test and see what sort of transfer speeds I got and saw some weird results...For my first test,I added the NVMe drive as a passthrough device to a Windows guest and was able to transfer to and from Freenas box without issue. Speeds were typically ~350-400 MB/s but could drop down to 250 MB/s or so, and would top out around 525 MB/s, pretty slick!I can access the Freenas SMB share over the 10Gb port without issue and I have been playing around with the capabilities. After finding out that my Linux Raid (MDADM) mirror is having horrible write performance, I decided to plug in an NVMe drive that I had lying around and check out its performance.I was curious if anyone else has seen this or had any suggestions.I have recently began playing around with my two servers (Freenas Box and oVirt box) and their 10Gb Ethernet ports.(Writing TO the Windows Guest on NVMe storage)Sometimes these hit the low 10-20 MB/s during the transfer.