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 <leoa...@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 > _______________________________________________ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/IVBUE56TB5E3CNSKRGR7TCTTX6IKKHXJ/ _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/W3ICWOBJFCS6ZZROXAZROZOY5OFLMDJP/