Try to increase also in VM and tap interface under VM on hypervisor, then you get about at least 8Gbits.

On 27.6.2016 18:54, Foucault de Bonneval wrote:
Hi Jakub,

MTU is at 9000 on the physical, the bond ans the vhost.
MTU inside the VM is 1500.

Foucault

2016-06-27 18:48 GMT+02:00 Jakub Pavlik <[email protected] <mailto:[email protected]>>:

    HI Foucault,

    do you have MTU 9000 everywhere? Even tap interface outside and
    inside of VM?

    Jakub


    On 27.6.2016 18:35, Foucault de Bonneval wrote:
    Hi there,

    We are actually running new benchmarks on Opencontrail 2.21.x
    version.
    The maximum throughput we can get is :
     - ~6Gb/s in "half duplex" from VM A -> VM B or VM B -> VM A
     - ~3.5Gb/s in "full duplex" in a VM A <-> VM B pattern

    Tests are run with Iperf on Ubuntu 14.04, computes are also on
    Ubuntu 14.04, kernel 3.13.0-83-generic


    Does anyone have run similar tests and may have results to share ?
    If anyone have dig on optimizations on a system level that could
    improve those results, I'd love some informations.

    Thanks,
    Foucault


    CPU : Intel(R) Xeon(R) CPU E5-2670 v3 @ 2.30GHz (48 cores)

    # lspci
    01:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
    SFI/SFP+ Network Connection (rev 01)
    01:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
    SFI/SFP+ Network Connection (rev 01)


    # ethtool -k vhost0
    Features for vhost0:
    rx-checksumming: off [fixed]
    tx-checksumming: on
    tx-checksum-ipv4: on [fixed]
    tx-checksum-ip-generic: off [fixed]
    tx-checksum-ipv6: off [fixed]
    tx-checksum-fcoe-crc: off [fixed]
    tx-checksum-sctp: off [fixed]
    scatter-gather: on
    tx-scatter-gather: on [fixed]
    tx-scatter-gather-fraglist: off [fixed]
    tcp-segmentation-offload: on
    tx-tcp-segmentation: on [fixed]
    tx-tcp-ecn-segmentation: off [fixed]
    tx-tcp6-segmentation: off [fixed]
    udp-fragmentation-offload: off [fixed]
    generic-segmentation-offload: on
    generic-receive-offload: on
    large-receive-offload: off [fixed]
    rx-vlan-offload: off [fixed]
    tx-vlan-offload: off [fixed]
    ntuple-filters: off [fixed]
    receive-hashing: off [fixed]
    highdma: off [fixed]
    rx-vlan-filter: off [fixed]
    vlan-challenged: off [fixed]
    tx-lockless: off [fixed]
    netns-local: off [fixed]
    tx-gso-robust: off [fixed]
    tx-fcoe-segmentation: off [fixed]
    tx-gre-segmentation: off [fixed]
    tx-ipip-segmentation: off [fixed]
    tx-sit-segmentation: off [fixed]
    tx-udp_tnl-segmentation: off [fixed]
    tx-mpls-segmentation: off [fixed]
    fcoe-mtu: off [fixed]
    tx-nocache-copy: off
    loopback: off [fixed]
    rx-fcs: off [fixed]
    rx-all: off [fixed]
    tx-vlan-stag-hw-insert: off [fixed]
    rx-vlan-stag-hw-parse: off [fixed]
    rx-vlan-stag-filter: off [fixed]
    l2-fwd-offload: off [fixed]


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-- Jakub Pavlik
    CTO

    [tcp ◕ cloud]

    +420 602 177 027 <tel:%2B420%20602%20177%20027>
    [email protected] <mailto:[email protected]>

    tcp cloud a.s.
    Thamova 16
    186 00 Praha 8 - Karlin
    Czech republic
    http://tcpcloud.eu
    http://opentcpcloud.org




_______________________________________________
Dev mailing list
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--
Jakub Pavlik
CTO

[tcp ◕ cloud]

+420 602 177 027
[email protected]

tcp cloud a.s.
Thamova 16
186 00 Praha 8 - Karlin
Czech republic
http://tcpcloud.eu
http://opentcpcloud.org

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