Yardstick Test Case Description TC007ΒΆ

Network Performance
test case id
OPNFV_YARDSTICK_TC007_Virtual Traffic Classifier Data Plane
Throughput Benchmarking Test in Presence of Noisy neighbours
metric Throughput
test purpose To measure the throughput supported by the virtual Traffic Classifier according to the RFC2544 methodology for a user-defined set of vTC deployment configurations in the presence of noisy neighbours.

file: opnfv_yardstick_tc007.yaml

packet_size: size of the packets to be used during the
throughput calculation. Allowe values: [64, 128, 256, 512, 1024, 1280, 1518]
vnic_type: type of VNIC to be used.
Allowed values are:
  • normal: for default OvS port configuration
  • direct: for SR-IOV port configuration
vtc_flavor: OpenStack flavor to be used for the vTC
Default available values are: m1.small, m1.medium, and m1.large, but the user can create his/her own flavor and give it as input
num_of_neighbours: Number of noisy neighbours (VMs) to be
instantiated during the experiment. Allowed values: range (1, 10)
amount_of_ram: RAM to be used by each neighbor.
Allowed values: [‘250M’, ‘1G’, ‘2G’, ‘3G’, ‘4G’, ‘5G’,
‘6G’, ‘7G’, ‘8G’, ‘9G’, ‘10G’]

Deault value: 256M

number_of_cores: Number of noisy neighbours (VMs) to be
instantiated during the experiment. Allowed values: range (1, 10) Default value: 1
vlan_sender: vlan tag of the network on which the vTC will
receive traffic (VLAN Network 1). Allowed values: range (1, 4096)
vlan_receiver: vlan tag of the network on which the vTC
will send traffic back to the packet generator (VLAN Network 2). Allowed values: range (1, 4096)
default_net_name: neutron name of the defaul network that
is used for access to the internet from the vTC (vNIC 1).
default_subnet_name: subnet name for vNIC1
(information available through Neutron).
vlan_net_1_name: Neutron Name for VLAN Network 1
(information available through Neutron).
vlan_subnet_1_name: Subnet Neutron name for VLAN Network 1
(information available through Neutron).
vlan_net_2_name: Neutron Name for VLAN Network 2
(information available through Neutron).
vlan_subnet_2_name: Subnet Neutron name for VLAN Network 2
(information available through Neutron).
test tool

DPDK pktgen

DPDK Pktgen is not part of a Linux distribution, hence it needs to be installed by the user.





applicability Test can be configured with different flavors, vNIC type and packet sizes. Default values exist as specified above. The vNIC type and flavor MUST be specified by the user.

The vTC has been successfully instantiated and configured. The user has correctly assigned the values to the deployment

configuration parameters.
  • Multicast traffic MUST be enabled on the network.

    The Data network switches need to be configured in order to manage multicast traffic.

  • In the case of SR-IOV vNICs use, SR-IOV compatible NICs

    must be used on the compute node.

  • Yarsdtick needs to be installed on a host connected to the

    data network and the host must have 2 DPDK-compatible NICs. Proper configuration of DPDK and DPDK pktgen is required before to run the test case. (For further instructions please refer to the ApexLake documentation).

test sequence Description and expected results
step 1 The noisy neighbours are deployed as required by the user.
step 2 The vTC is deployed, according to the configuration required by the user
step 3 The vTC is correctly deployed and configured as necessary. The initialization script has been correctly executed and the vTC is ready to receive and process the traffic.
step 4

Test case is executed with the parameters specified by the user:

  • vTC flavor
  • vNIC type
  • packet size
The traffic is sent to the vTC using the maximum available
traffic rate
step 5

The vTC instance forwards all the packets back to the packet generator for 60 seconds, as specified by RFC 2544.

Steps 4 and 5 are executed different times with different with different traffic rates, in order to find the maximum supported traffic rate, accoring to the current definition of throughput in RFC 2544.

test verdict The result of the test is a number between 0 and 100 which represents the throughput in terms of percentage of the available pktgen NIC bandwidth.