Greetings Laine,
Sent: Thursday, May 03, 2018 at 9:39 AM From: daggs <daggs@gmx.com> To: "Laine Stump" <laine@redhat.com> Cc: libvirt-users@redhat.com Subject: Re: [libvirt-users] connecting host and guest vm using a dummy nic
Greetings Laine,
Sent: Thursday, May 03, 2018 at 1:13 AM From: "Laine Stump" <laine@redhat.com> To: libvirt-users@redhat.com Cc: daggs <daggs@gmx.com> Subject: Re: [libvirt-users] connecting host and guest vm using a dummy nic
On 05/02/2018 01:28 PM, daggs wrote:
Sent: Wednesday, May 02, 2018 at 8:09 PM From: "Laine Stump" <laine@redhat.com>
Also, if virtio works, then *definitely* use that instead of e1000 - the performance will be much better and overhead much lower.
so any network test will do?
Do you mean to test and see if virtio-net is acceptable for your guest OS? If the guest OS has the driver for virtio-net, then definitely you should use it. I've never heard of a case of any of the drivers that emulate real hardware performing anywhere near as well as virtio-net.
no, I mean test the virtual nic speed, will ipref work? also, in the guest os, the module attached to the virtual nic is virtio-pci, is that expected?
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root@router:/# iperf -s ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ [ 4] local 10.1.0.138 port 5001 connected with 10.1.0.212 port 57590 [ ID] Interval Transfer Bandwidth [ 4] 0.0-10.0 sec 33.1 GBytes 28.4 Gbits/sec looks very good indeed. thanks for all the help.