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 <[email protected]>:
>
> 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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