diff --git a/test_plans/index.rst b/test_plans/index.rst
index 182743a9..9cece581 100644
--- a/test_plans/index.rst
+++ b/test_plans/index.rst
@@ -128,8 +128,7 @@ The following are the test plans for the DPDK DTS automated test system.
     NICStatistics_test_plan
     ntb_test_plan
     nvgre_test_plan
-    perf_virtio_user_loopback_test_plan
-    perf_vm2vm_virtio_net_perf_test_plan
+    perf_virtio_user_loopback_test_plan    
     pf_smoke_test_plan
     pipeline_test_plan
     pvp_virtio_user_multi_queues_port_restart_test_plan
diff --git a/test_plans/perf_vm2vm_virtio_net_perf_test_plan.rst b/test_plans/perf_vm2vm_virtio_net_perf_test_plan.rst
index c284c0f3..e69de29b 100644
--- a/test_plans/perf_vm2vm_virtio_net_perf_test_plan.rst
+++ b/test_plans/perf_vm2vm_virtio_net_perf_test_plan.rst
@@ -1,150 +0,0 @@
-.. Copyright (c) <2019>, Intel Corporation
-   All rights reserved.
-
-   Redistribution and use in source and binary forms, with or without
-   modification, are permitted provided that the following conditions
-   are met:
-
-   - Redistributions of source code must retain the above copyright
-     notice, this list of conditions and the following disclaimer.
-
-   - Redistributions in binary forim must reproduce the above copyright
-     notice, this list of conditions and the following disclaimer in
-     the documentation and/or other materials provided with the
-     distribution.
-
-   - Neither the name of Intel Corporation nor the names of its
-     contributors may be used to endorse or promote products derived
-     from this software without specific prior written permission.
-
-   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
-   OF THE POSSIBILITY OF SUCH DAMAGE.
-
-==========================================
-perf vm2vm vhost-user/virtio-net test plan
-==========================================
-
-Description
-===========
-
-This test plan test vhost tx offload (TSO) function by verifing the TSO/cksum in the TCP/IP
-stack enabled environment with vm2vm split ring and packed ring vhost-user/virtio-net mergeable
-path. For packed virtqueue virtio-net test, need qemu version > 4.2.0 and VM kernel version > v5.1.
-
-Test flow
-=========
-
-Virtio-net <-> Vhost <-> Testpmd <-> Vhost <-> Virtio-net
-
-Test Case 1: Perf VM2VM split ring vhost-user/virtio-net test with tcp traffic
-==============================================================================
-
-1. Launch the Vhost sample by below commands::
-
-    rm -rf vhost-net*
-    ./testpmd -l 2-4 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,queues=1' \
-    --vdev 'net_vhost1,iface=vhost-net1,queues=1'  -- -i --nb-cores=2 --txd=1024 --rxd=1024
-    testpmd>start
-
-2. Launch VM1 and VM2::
-
-    taskset -c 13 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 1 -m 4096 \
-    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \
-    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu16.img  \
-    -chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
-    -device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \
-    -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
-    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6002-:22 \
-    -chardev socket,id=char0,path=./vhost-net0 \
-    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :10
-
-    taskset -c 15 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 1 -m 4096 \
-    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \
-    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu16-2.img  \
-    -chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
-    -device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \
-    -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
-    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6003-:22 \
-    -chardev socket,id=char0,path=./vhost-net1 \
-    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :12
-
-3. On VM1, set virtio device IP and run arp protocal::
-
-    ifconfig ens5 1.1.1.2
-    arp -s 1.1.1.8 52:54:00:00:00:02
-
-4. On VM2, set virtio device IP and run arp protocal::
-
-    ifconfig ens5 1.1.1.8
-    arp -s 1.1.1.2 52:54:00:00:00:01
-
-5. Check the iperf performance between two VMs by below commands::
-
-    Under VM1, run: `iperf -s -i 1`
-    Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`
-
-6. Check iperf throughput can get expected data.
-
-
-Test Case 2: Perf VM2VM packed ring vhost-user/virtio-net test with tcp traffic
-===============================================================================
-
-1. Launch the Vhost sample by below commands::
-
-    rm -rf vhost-net*
-    ./testpmd -l 2-4 -n 4 --no-pci --file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net0,queues=1' \
-    --vdev 'net_vhost1,iface=vhost-net1,queues=1'  -- -i --nb-cores=2 --txd=1024 --rxd=1024
-    testpmd>start
-
-2. Launch VM1 and VM2::
-
-    taskset -c 13 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 1 -m 4096 \
-    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \
-    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu16.img  \
-    -chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
-    -device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \
-    -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
-    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6002-:22 \
-    -chardev socket,id=char0,path=./vhost-net0 \
-    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10
-
-    taskset -c 15 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 1 -m 4096 \
-    -object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge,share=on \
-    -numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu16-2.img  \
-    -chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
-    -device virtserialport,chardev=vm2_qga0,name=org.qemu.guest_agent.2 -daemonize \
-    -monitor unix:/tmp/vm2_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
-    -netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6003-:22 \
-    -chardev socket,id=char0,path=./vhost-net1 \
-    -netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
-    -device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :12
-
-3. On VM1, set virtio device IP and run arp protocal::
-
-    ifconfig ens3 1.1.1.2
-    arp -s 1.1.1.8 52:54:00:00:00:02
-
-4. On VM2, set virtio device IP and run arp protocal::
-
-    ifconfig ens3 1.1.1.8
-    arp -s 1.1.1.2 52:54:00:00:00:01
-
-5. Check the iperf performance between two VMs by below commands::
-
-    Under VM1, run: `iperf -s -i 1`
-    Under VM2, run: `iperf -c 1.1.1.2 -i 1 -t 60`
-
-6. Check iperf throughput can get expected data.
diff --git a/tests/TestSuite_perf_vm2vm_virtio_net_perf.py b/tests/TestSuite_perf_vm2vm_virtio_net_perf.py
index f09967b3..e69de29b 100644
--- a/tests/TestSuite_perf_vm2vm_virtio_net_perf.py
+++ b/tests/TestSuite_perf_vm2vm_virtio_net_perf.py
@@ -1,347 +0,0 @@
-# BSD LICENSE
-#
-# Copyright(c) <2020> Intel Corporation.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-#   * Redistributions of source code must retain the above copyright
-#     notice, this list of conditions and the following disclaimer.
-#   * Redistributions in binary form must reproduce the above copyright
-#     notice, this list of conditions and the following disclaimer in
-#     the documentation and/or other materials provided with the
-#     distribution.
-#   * Neither the name of Intel Corporation nor the names of its
-#     contributors may be used to endorse or promote products derived
-#     from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-"""
-DPDK Test suite.
-
-vm2vm split ring and packed ring with tx offload (TSO and UFO) with non-mergeable path.
-vm2vm split ring and packed ring with UFO about virtio-net device capability with non-mergeable path.
-vm2vm split ring and packed ring vhost-user/virtio-net check the payload of large packet is valid with
-mergeable and non-mergeable dequeue zero copy.
-please use qemu version greater 4.1.94 which support packed feathur to test this suite.
-"""
-import json
-import os
-import random
-import re
-import string
-import time
-from copy import deepcopy
-
-import framework.rst as rst
-from framework.pmd_output import PmdOutput
-from framework.settings import UPDATE_EXPECTED, load_global_setting
-from framework.test_case import TestCase
-from framework.virt_common import VM
-
-
-class TestPerfVM2VMVirtioNetPerf(TestCase):
-    def set_up_all(self):
-        self.dut_ports = self.dut.get_ports()
-        self.verify(len(self.dut_ports) >= 1, "Insufficient ports for testing")
-        # get core mask
-        self.ports_socket = self.dut.get_numa_id(self.dut_ports[0])
-        self.cores_list = self.dut.get_core_list('all', socket=self.ports_socket)
-        self.verify(len(self.cores_list) >= 4,
-                    "There has not enough cores to test this suite %s" %
-                    self.suite_name)
-        self.vm_num = 2
-        self.virtio_ip1 = "1.1.1.2"
-        self.virtio_ip2 = "1.1.1.3"
-        self.virtio_mac1 = "52:54:00:00:00:01"
-        self.virtio_mac2 = "52:54:00:00:00:02"
-        self.base_dir = self.dut.base_dir.replace('~', '/root')
-        self.random_string = string.ascii_letters + string.digits
-        socket_num = len(set([int(core['socket']) for core in self.dut.cores]))
-        self.socket_mem = ','.join(['2048']*socket_num)
-        self.vhost = self.dut.new_session(suite="vhost")
-        self.pmd_vhost = PmdOutput(self.dut, self.vhost)
-        self.json_obj = dict()
-        self.save_result_flag = True
-        self.path=self.dut.apps_name['test-pmd']
-        if self.dut.build_type == 'meson':
-            self.build_pmd_bond(self.dut)
-
-    def set_up(self):
-        """
-        run before each test case.
-        """
-        self.dut.send_expect("rm -rf %s/vhost-net*" % self.base_dir, "#")
-        self.vm_dut = []
-        self.vm = []
-        self.gap = self.get_suite_cfg()['accepted_tolerance']
-        self.test_duration = self.get_suite_cfg()['test_duration']
-        self.test_parameter = self.get_suite_cfg()['test_parameters']
-        self.test_result = {}
-        self.table_header = ['Mode', 'Type', 'TXD/RXD', 'Throughput', 'Expected Throughput',
-                             'Throughput Difference']
-
-    def build_pmd_bond(self, user_dut):
-        user_dut.set_build_options({'RTE_MEMCPY_AVX512': 'y'})
-        user_dut.build_install_dpdk(self.target)
-
-    def restore_env(self, user_dut):
-        user_dut.build_install_dpdk(self.target)
-
-    def handle_expected(self):
-        """
-        Update expected numbers to configurate file: conf/$suite_name.cfg
-        """
-        if load_global_setting(UPDATE_EXPECTED) == "yes":
-            self.expected_throughput[self.test_parameter] = self.throughput
-
-    def handle_results(self):
-        header = self.table_header
-        ret_data = {}
-        ret_data[header[0]] = 'vm2vm'
-        ret_data[header[1]] = 'iperf'
-        ret_data[header[2]] = self.test_parameter
-        ret_data[header[3]] = self.throughput
-        ret_data[header[4]] = self.expected_throughput[self.test_parameter]
-        expected = re.search('(.*\d)(\s?.+)', self.expected_throughput[self.test_parameter])
-        self.expected_data = float(expected.group(1))
-        self.expect_unit = expected.group(2).strip()
-        self.verify(self.throughput_unit == self.expect_unit, "data unit not correct, expect: %s, result: %s" % (self.expect_unit, self.throughput_unit))
-        self.gap_data = round((self.throughput_data - self.expected_data), 3)
-        ret_data[header[5]] = str(self.gap_data) + ' ' + self.expect_unit
-        self.test_result = deepcopy(ret_data)
-        self.result_table_create(header)
-        self.result_table_add(list(self.test_result.values()))
-        # present test results to screen
-        self.result_table_print()
-        # save test results as a file
-        if self.save_result_flag:
-            self.save_result(self.test_result)
-
-    def save_result(self, data):
-        '''
-        Saves the test results as a separated file named with
-        self.nic+_perf_virtio_user_pvp.json in output folder
-        if self.save_result_flag is True
-        '''
-        case_name = self.running_case
-        self.json_obj[case_name] = list()
-        status_result = []
-        row_in = data
-        row_dict0 = dict()
-        row_dict0['performance'] = list()
-        row_dict0['parameters'] = list()
-        gap = self.expected_data * -float(self.gap) * 0.01
-
-        self.logger.info("Accept tolerance are %0.3f %s" % (gap, self.expect_unit))
-        self.logger.info("Throughput Difference are %0.3f %s" % (self.gap_data, self.expect_unit))
-        if self.throughput_data > self.expected_data + gap:
-            row_dict0['status'] = 'PASS'
-        else:
-            row_dict0['status'] = 'FAIL'
-        row_dict1 = dict(name="Throughput", value=self.throughput_data, unit=self.throughput_unit, delta=self.gap_data)
-        row_dict2 = dict(name="Txd/Rxd", value=row_in["TXD/RXD"], unit="descriptor")
-        row_dict0['performance'].append(row_dict1)
-        row_dict0['parameters'].append(row_dict2)
-        self.json_obj[case_name].append(row_dict0)
-        status_result.append(row_dict0['status'])
-        with open(os.path.join(rst.path2Result,
-                               '{0:s}_{1}.json'.format(
-                                   self.nic, self.suite_name)), 'w') as fp:
-            json.dump(self.json_obj, fp)
-
-        self.verify("FAIL" not in status_result, "Exceeded Gap")
-
-    def start_vhost_testpmd(self):
-        """
-        launch the testpmd with different parameters
-        """
-        vdev1 = "--vdev 'net_vhost0,iface=%s/vhost-net0,queues=1' " % self.base_dir
-        vdev2 = "--vdev 'net_vhost1,iface=%s/vhost-net1,queues=1' " % self.base_dir
-        eal_params = self.dut.create_eal_parameters(cores=self.cores_list, prefix='vhost', no_pci=True)
-        para = " -- -i --nb-cores=2 --txd=1024 --rxd=1024"
-        self.command_line = self.path + eal_params + vdev1 + vdev2 + para
-        self.pmd_vhost.execute_cmd(self.command_line, timeout=30)
-        self.pmd_vhost.execute_cmd('start', timeout=30)
-
-    def start_vms(self, mode="mergeable", packed=False):
-        """
-        start two VM, each VM has one virtio device
-        """
-        setting_args = "mrg_rxbuf=off,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on"
-        if mode == "ufo":
-            setting_args += ",guest_ufo=on,host_ufo=on"
-        elif mode == "mergeable":
-            setting_args = "mrg_rxbuf=on"
-        elif mode == "normal":
-            setting_args = "mrg_rxbuf=off"
-        if packed is True:
-            setting_args = "%s,packed=on" % setting_args
-
-        for i in range(self.vm_num):
-            vm_dut = None
-            vm_info = VM(self.dut, 'vm%d' % i, 'vhost_sample')
-            vm_params = {}
-            vm_params['driver'] = 'vhost-user'
-            vm_params['opt_path'] = self.base_dir + '/vhost-net%d' % i
-            vm_params['opt_mac'] = "52:54:00:00:00:0%d" % (i+1)
-            vm_params['opt_settings'] = setting_args
-            vm_info.set_vm_device(**vm_params)
-            time.sleep(3)
-            try:
-                vm_dut = vm_info.start(set_target=False)
-                if vm_dut is None:
-                    raise Exception("Set up VM ENV failed")
-            except Exception as e:
-                self.logger.error("Failure for %s" % str(e))
-                raise e
-            vm_dut.restore_interfaces()
-
-            self.vm_dut.append(vm_dut)
-            self.vm.append(vm_info)
-
-    def config_vm_env(self):
-        """
-        set virtio device IP and run arp protocal
-        """
-        vm1_intf = self.vm_dut[0].ports_info[0]['intf']
-        vm2_intf = self.vm_dut[1].ports_info[0]['intf']
-        self.vm_dut[0].send_expect("ifconfig %s %s" % (vm1_intf, self.virtio_ip1), "#", 10)
-        self.vm_dut[1].send_expect("ifconfig %s %s" % (vm2_intf, self.virtio_ip2), "#", 10)
-        self.vm_dut[0].send_expect("arp -s %s %s" % (self.virtio_ip2, self.virtio_mac2), "#", 10)
-        self.vm_dut[1].send_expect("arp -s %s %s" % (self.virtio_ip1, self.virtio_mac1), "#", 10)
-
-    def prepare_test_env(self, path_mode, packed_mode=False):
-        """
-        start vhost testpmd and qemu, and config the vm env
-        """
-        self.start_vhost_testpmd()
-        self.start_vms(mode=path_mode, packed=packed_mode)
-        self.config_vm_env()
-
-    def start_iperf(self, mode):
-        """
-        run perf command between to vms
-        """
-        # clear the port xstats before iperf
-        self.vhost.send_expect("clear port xstats all", "testpmd> ", 10)
-
-        if mode == "ufo":
-            iperf_server = "iperf -s -u -i 1"
-            iperf_client = "iperf -c 1.1.1.2 -i 1 -t %s -P 4 -u -b 1G -l 9000" % self.test_duration
-        else:
-            iperf_server = "iperf -s -i 1"
-            iperf_client = "iperf -c 1.1.1.2 -i 1 -t %s" % self.test_duration
-        self.vm_dut[0].send_expect("%s > iperf_server.log &" % iperf_server, "", 10)
-        self.vm_dut[1].send_expect("%s > iperf_client.log &" % iperf_client, "", 60)
-        time.sleep(int(self.test_duration)+3)
-
-    def get_perf_result(self):
-        """
-        get the iperf test result
-        """
-        self.vm_dut[0].send_expect('pkill iperf', '# ')
-        self.vm_dut[1].session.copy_file_from("%s/iperf_client.log" % self.dut.base_dir)
-        fp = open("./iperf_client.log")
-        fmsg = fp.read()
-        fp.close()
-        # remove the server report info from msg
-        index = fmsg.find("Server Report")
-        if index != -1:
-            fmsg = fmsg[:index]
-        iperfdata = re.compile('\s(\d+\.\d+)\s([MG]bits/sec)').findall(fmsg)
-        # the last data of iperf is the ave data from 0-30 sec
-        self.verify(len(iperfdata) != 0, "The iperf data between to vms is 0")
-        self.throughput_unit = iperfdata[-1][1]
-        self.throughput_data = round(float(iperfdata[-1][0]), 3)
-        self.throughput = str(self.throughput_data) + ' ' + self.throughput_unit
-        self.logger.info("The iperf data between vms is %s" % self.throughput)
-
-        # rm the iperf log file in vm
-        self.vm_dut[0].send_expect('rm iperf_server.log', '#', 10)
-        self.vm_dut[1].send_expect('rm iperf_client.log', '#', 10)
-
-    def verify_xstats_info_on_vhost(self):
-        """
-        check both 2VMs can receive and send big packets to each other
-        """
-        out_tx = self.vhost.send_expect("show port xstats 0", "testpmd> ", 20)
-        out_rx = self.vhost.send_expect("show port xstats 1", "testpmd> ", 20)
-
-        rx_info = re.search("rx_size_1523_to_max_packets:\s*(\d*)", out_rx)
-        tx_info = re.search("tx_size_1523_to_max_packets:\s*(\d*)", out_tx)
-
-        self.verify(int(rx_info.group(1)) > 0,
-                    "Port 1 not receive packet greater than 1522")
-        self.verify(int(tx_info.group(1)) > 0,
-                    "Port 0 not forward packet greater than 1522")
-
-    def start_iperf_and_verify_vhost_xstats_info(self, mode):
-        """
-        start to send packets and verify vm can received data of iperf
-        and verify the vhost can received big pkts in testpmd
-        """
-        self.start_iperf(mode)
-        self.get_perf_result()
-        self.verify_xstats_info_on_vhost()
-
-    def stop_all_apps(self):
-        for i in range(len(self.vm)):
-            self.vm[i].stop()
-        self.pmd_vhost.quit()
-
-    def test_vm2vm_split_ring_iperf_with_tso(self):
-        """
-        VM2VM split ring vhost-user/virtio-net test with tcp traffic
-        """
-        path_mode = "tso"
-        self.test_target = "split_tso"
-        self.expected_throughput = self.get_suite_cfg()['expected_throughput'][self.test_target]
-        self.prepare_test_env(path_mode)
-        self.start_iperf_and_verify_vhost_xstats_info(mode="tso")
-        self.handle_expected()
-        self.handle_results()
-
-    def test_vm2vm_packed_ring_iperf_with_tso(self):
-        """
-        VM2VM packed ring vhost-user/virtio-net test with tcp traffic
-        """
-        path_mode = "tso"
-        self.test_target = "packed_tso"
-        self.expected_throughput = self.get_suite_cfg()['expected_throughput'][self.test_target]
-        packed_mode = True
-        self.prepare_test_env(path_mode, packed_mode)
-        self.start_iperf_and_verify_vhost_xstats_info(mode="tso")
-        self.handle_expected()
-        self.handle_results()
-
-    def tear_down(self):
-        """
-        run after each test case.
-        """
-        self.stop_all_apps()
-        self.dut.kill_all()
-        time.sleep(2)
-
-    def tear_down_all(self):
-        """
-        Run after each test suite.
-
-        """
-        if self.dut.build_type == 'meson':
-            self.restore_env(self.dut)
-        if getattr(self, 'vhost', None):
-            self.dut.close_session(self.vhost)
