[ovirt-users] Re: Bandwidth problem
Hi,
i got with iperf:
To a remote VM on different HOST:
10.8 Gb/s „TCP“ bandwidth. „UDP“ (-u) <= 1Kb/s + failed ACK last block
To a local VM on same HOST:
11.1 Gb/s „TCP“ bandwidth. „UDP“ (-u) <= 1Mb/s + failed ACK last block
VM’s run Linux Debian 8/9, virtio_net, guest tools installed, MTU 1500
HOST's have Intel Cards X540, MTU 1500
Possible did you run „UDP“ tests only ?
Cheers
Oliver
Am 09.03.2019 um 11:26 schrieb Leo David <leoalex(a)gmail.com>:
Hello Everyone,
I have 10Gb connections setup for all the hosts in the cluster, for both management/vm
and gluster traffic ( separate network cards )
The problem is that i just cannot pass 1Gb/s traffic between vms ( even between vms
running on the same hosts ! - which makes the things more weird... ). Traffic measured by
using iperf tool.
Is there a way I can check waht could be the problem ? Network card type, vm drivers,
any suggestion ? I just do not know where to look for a possible cause.
Thank you very much !
Leo
--
Best regards, Leo David
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