diff --git a/test_plans/index.rst b/test_plans/index.rst
index a0c056cd..b907a1db 100644
--- a/test_plans/index.rst
+++ b/test_plans/index.rst
@@ -248,7 +248,6 @@ The following are the test plans for the DPDK DTS automated test system.
     dpdk_gso_lib_test_plan
     vswitch_sample_cbdma_test_plan
     vswitch_sample_dsa_test_plan
-    vswitch_pvp_multi_paths_performance_with_cbdma_test_plan
     vxlan_gpe_support_in_i40e_test_plan
     pvp_diff_qemu_version_test_plan
     pvp_share_lib_test_plan
diff --git a/test_plans/vswitch_pvp_multi_paths_performance_with_cbdma_test_plan.rst b/test_plans/vswitch_pvp_multi_paths_performance_with_cbdma_test_plan.rst
deleted file mode 100644
index 98f4dcea..00000000
--- a/test_plans/vswitch_pvp_multi_paths_performance_with_cbdma_test_plan.rst
+++ /dev/null
@@ -1,366 +0,0 @@
-.. SPDX-License-Identifier: BSD-3-Clause
-   Copyright(c) 2022 Intel Corporation
-
-========================================================
-Vswitch PVP multi-paths performance with CBDMA test plan
-========================================================
-
-Description
-===========
-
-Benchmark PVP multi-paths performance with CBDMA in vhost sample,
-include 10 tx/rx paths: inorder mergeable, inorder non-mergeable,
-mergeable, non-mergeable, vectorized_rx, virtio 1.1 inorder mergeable,
-virtio 1.1 inorder non-mergeable, virtio 1.1  mergeable, virtio 1.1 non-mergeable,
-virtio1.1 vectorized path. Give 1 core for vhost and virtio respectively.
-About vswitch sample, a new option --total-num-mbufs is added from dpdk-22.03,
-for the user to set larger mbuf pool to avoid launch fail. For example, dpdk-vhost
-will fail to launch with a 40G i40e port without setting larger mbuf pool.
-For more about vhost switch sample, please refer to the dpdk docs:
-http://doc.dpdk.org/guides/sample_app_ug/vhost.html
-For virtio-user vdev parameter, you can refer to the dpdk doc:
-https://doc.dpdk.org/guides/nics/virtio.html#virtio-paths-selection-and-usage
-
-Prerequisites
-=============
-
-Topology
---------
-
-Test flow: TG-->nic-->vswitch-->virtio-user-->vswitch-->nic-->TG
-
-Hardware
---------
-Supportted NICs: all except Intel® Ethernet 800 Series that not support VMDQ
-
-Software
---------
-Trex:http://trex-tgn.cisco.com/trex/release/v2.26.tar.gz
-
-General set up
---------------
-1. Compile DPDK and vhost example::
-
-	# meson <dpdk build dir>  
-	# meson configure -Dexamples=vhost <dpdk build dir> 
-	# ninja -C <dpdk build dir> -j 110
-
-2. Get the pci device id and DMA device id of DUT.
-
-For example, 0000:18:00.0 is pci device id, 0000:00:04.0 is DMA device id::
-
-	<dpdk dir># ./usertools/dpdk-devbind.py -s
-
-	Network devices using kernel driver
-	===================================
-	0000:18:00.0 'Device 159b' if=ens785f0 drv=ice unused=vfio-pci
-	
-	DMA devices using kernel driver
-	===============================
-	0000:00:04.0 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
-
-Test case
-=========	
-
-Common steps
-------------
-1. Bind one physical port and one CBDMA port to vfio-pci::
-
-	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci <DUT port pci device id>
-	<dpdk dir># ./usertools/dpdk-devbind.py -b vfio-pci <DUT port DMA device id>
-	
-	For example::
-	./usertools/dpdk-devbind.py -b vfio-pci 0000:00:18.0
-	./usertools/dpdk-devbind.py -b vfio-pci 0000:00:04.0
-
-2. Inject different size of packets to NIC by traffic generator::
-
-	The packet size include [64, 128, 256, 512, 1024, 1518], and the format of packet is as follows.
-    +-------------+-------------+-------------+-------------+
-    | MAC         | MAC         | IPV4        | IPV4        |
-    | Src address | Dst address | Src address | Dst address |
-    |-------------|-------------|-------------|-------------|
-    | Any MAC     | Virtio mac  | Any IP      | Any IP      |
-    +-------------+-------------+-------------+-------------+
-	All the packets in this test plan use the Virtio mac:00:11:22:33:44:10.
-
-Test Case 1: Vswitch PVP split ring inorder mergeable path performance with CBDMA
----------------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of split ring inorder mergeable path with CBDMA. 
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with split ring inorder mergeable path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0  \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=0,mrg_rxbuf=1,in_order=1 \
-	-- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1 
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all
-
-Test Case 2: Vswitch PVP split ring inorder non-mergeable path performance with CBDMA
--------------------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of split ring inorder non-mergeable path with CBDMA.
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with split ring non-mergeable path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0  \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=0,mrg_rxbuf=0,in_order=1 \
-	-- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1 
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all
-	
-Test Case 3: Vswitch PVP split ring mergeable path performance with CBDMA
--------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of split ring mergeable path with CBDMA.
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with split ring mergeable path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0  \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=0,mrg_rxbuf=1,in_order=0 \
-	-- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1 
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all	
-	
-Test Case 4: Vswitch PVP split ring non-mergeable path performance with CBDMA
------------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of split ring non-mergeable path with CBDMA.
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with split ring non-mergeable path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0  \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=0,mrg_rxbuf=0,in_order=0 \
-	-- -i --enable-hw-vlan-strip --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1 
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all		
-
-Test Case 5: Vswitch PVP split ring vectorized path performance with CBDMA
---------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of split ring vectorized path with CBDMA.
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with split ring vectorized path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0 \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=0,mrg_rxbuf=0,in_order=1,vectorized=1 \
-	-- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1 
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all		
-	
-	
-Test Case 6: Vswitch PVP packed ring inorder mergeable path performance with CBDMA
-----------------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of packed ring inorder mergeable path with CBDMA.
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with packed ring inorder mergeable path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0  \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=1,mrg_rxbuf=1,in_order=1 \
-	-- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1 
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all
-
-Test Case 7: Vswitch PVP packed ring inorder non-mergeable path performance with CBDMA
---------------------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of packed ring inorder non-mergeable path with CBDMA.
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with packed ring inorder non-mergeable path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0  \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=1,mrg_rxbuf=0,in_order=1 \
-	-- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1 
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all
-	
-Test Case 8: Vswitch PVP packed ring mergeable path performance with CBDMA
---------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of packed ring mergeable path with CBDMA.
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with packed ring mergeable path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0  \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=1,mrg_rxbuf=1,in_order=0 \
-	-- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all	
-	
-Test Case 9: Vswitch PVP packed ring non-mergeable path performance with CBDMA
-------------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of packed ring non-mergeable path with CBDMA.
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with packed ring non-mergeable path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0  \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=1,mrg_rxbuf=0,in_order=0 \
-	-- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1 
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all		
-
-Test Case 10: Vswitch PVP packed ring vectorized path performance with CBDMA
-----------------------------------------------------------------------------
-This case uses Vswitch and Traffic generator(For example, Trex) to test performance of packed ring vectorized path with CBDMA.
-
-1. Bind one physical port and one CBDMA port to vfio-pci as common step 1.
-
-2. Launch dpdk-vhost by below command::
-
-	<dpdk dir>#./<dpdk build dir>/examples/dpdk-vhost -l 2-3 -n 4 -a 0000:18:00.0 -a 0000:00:04.0 \
-	-- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 --socket-file /tmp/vhost-net --dmas [txd0@0000:00:04.0] --total-num-mbufs 600000
-
-3. Launch virtio-user with packed ring vectorized path::
-
-	<dpdk dir>#./<dpdk build dir>/app/dpdk-testpmd -l 5-6 -n 4 --no-pci --file-prefix=testpmd0 --force-max-simd-bitwidth=512 \
-	--vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=/tmp/vhost-net,queues=1,packed_vq=1,mrg_rxbuf=0,in_order=1,vectorized=1 \
-	-- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1
-
-4. Send packets from virtio-user to let vswitch know the mac addr::
-
-	testpmd> set fwd mac
-	testpmd> start tx_first
-	testpmd> stop
-	testpmd> start
-
-5. Send packets by traffic generator as common step 2, and check the throughput with below command::
-
-	testpmd> show port stats all		
diff --git a/tests/TestSuite_vswitch_pvp_multi_paths_performance_with_cbdma.py b/tests/TestSuite_vswitch_pvp_multi_paths_performance_with_cbdma.py
deleted file mode 100644
index c2d505e3..00000000
--- a/tests/TestSuite_vswitch_pvp_multi_paths_performance_with_cbdma.py
+++ /dev/null
@@ -1,563 +0,0 @@
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2022 Intel Corporation
-#
-
-"""
-DPDK Test suite.
-"""
-
-import json
-import os
-import re
-import time
-from copy import deepcopy
-
-import framework.rst as rst
-import framework.utils as utils
-from framework.packet import Packet
-from framework.pktgen import PacketGeneratorHelper
-from framework.pmd_output import PmdOutput
-from framework.settings import UPDATE_EXPECTED, load_global_setting
-from framework.test_case import TestCase
-from tests.virtio_common import basic_common as BC
-from tests.virtio_common import cbdma_common as CC
-
-
-class TestVswitchPvpMultiPathsPerformanceWithCbdma(TestCase):
-    def set_up_all(self):
-        """
-        Run at the start of each test suite.
-        """
-        self.build_vhost_app()
-        self.dut_ports = self.dut.get_ports()
-        self.number_of_ports = 1
-        self.verify(len(self.dut_ports) >= 1, "Insufficient ports for testing")
-        self.ports_socket = self.dut.get_numa_id(self.dut_ports[0])
-        self.cores = self.dut.get_core_list("all", socket=self.ports_socket)
-        self.vhost_core_list = self.cores[0:2]
-        self.vuser0_core_list = self.cores[2:4]
-        self.vhost_core_mask = utils.create_mask(self.vhost_core_list)
-        self.mem_channels = self.dut.get_memory_channels()
-        # get cbdma device
-        self.cbdma_dev_infos = []
-        self.dmas_info = None
-        self.device_str = None
-        self.out_path = "/tmp"
-        out = self.tester.send_expect("ls -d %s" % self.out_path, "# ")
-        if "No such file or directory" in out:
-            self.tester.send_expect("mkdir -p %s" % self.out_path, "# ")
-        self.base_dir = self.dut.base_dir.replace("~", "/root")
-        txport = self.tester.get_local_port(self.dut_ports[0])
-        self.txItf = self.tester.get_interface(txport)
-        self.virtio_user0_mac = "00:11:22:33:44:10"
-        self.vm_num = 2
-        self.app_testpmd_path = self.dut.apps_name["test-pmd"]
-        self.pktgen_helper = PacketGeneratorHelper()
-        self.vhost_user = self.dut.new_session(suite="vhost-user")
-        self.virtio_user0 = self.dut.new_session(suite="virtio-user0")
-        self.virtio_user0_pmd = PmdOutput(self.dut, self.virtio_user0)
-        self.frame_size = [64, 128, 256, 512, 1024, 1518]
-        self.save_result_flag = True
-        self.json_obj = {}
-        self.CC = CC(self)
-        self.BC = BC(self)
-
-    def set_up(self):
-        """
-        Run before each test case.
-        """
-        self.dut.send_expect("rm -rf %s/vhost-net*" % self.base_dir, "#")
-        self.dut.send_expect("killall -I dpdk-vhost", "#", 20)
-        self.dut.send_expect("killall -I dpdk-testpmd", "#", 20)
-        self.dut.send_expect("killall -I qemu-system-x86_64", "#", 20)
-
-        # Prepare the result table
-        self.table_header = ["Frame"]
-        self.table_header.append("Mode/RXD-TXD")
-        self.table_header.append("Mpps")
-        self.table_header.append("% linerate")
-        self.result_table_create(self.table_header)
-
-        self.test_parameters = self.get_suite_cfg()["test_parameters"]
-        # test parameters include: frames size, descriptor numbers
-        self.test_parameters = self.get_suite_cfg()["test_parameters"]
-
-        # traffic duraion in second
-        self.test_duration = self.get_suite_cfg()["test_duration"]
-
-        # initilize throughput attribution
-        # {'$framesize':{"$nb_desc": 'throughput'}
-        self.throughput = {}
-
-        # Accepted tolerance in Mpps
-        self.gap = self.get_suite_cfg()["accepted_tolerance"]
-        self.test_result = {}
-        self.nb_desc = self.test_parameters[64][0]
-
-    def build_vhost_app(self):
-        out = self.dut.build_dpdk_apps("./examples/vhost")
-        self.verify("Error" not in out, "compilation vhost error")
-
-    def start_vhost_app(self, allow_pci, cbdmas):
-        """
-        launch the vhost app on vhost side
-        """
-        self.app_path = self.dut.apps_name["vhost"]
-        socket_file_param = "--socket-file ./vhost-net"
-        allow_option = ""
-        for item in allow_pci:
-            allow_option += " -a {}".format(item)
-        params = (
-            " -c {} -n {} {} -- -p 0x1 --mergeable 1 --vm2vm 1 --stats 1 "
-            + socket_file_param
-            + " --dmas [txd0@{}] --total-num-mbufs 600000"
-        ).format(
-            self.vhost_core_mask,
-            self.mem_channels,
-            allow_option,
-            cbdmas[0],
-        )
-        self.command_line = self.app_path + params
-        self.vhost_user.send_command(self.command_line)
-        time.sleep(3)
-
-    def start_virtio_testpmd(
-        self,
-        virtio_path,
-        vlan_strip=False,
-        force_max_simd_bitwidth=False,
-    ):
-        """
-        launch the testpmd as virtio with vhost_net0
-        """
-        eal_params = (
-            " --vdev=net_virtio_user0,mac={},path=./vhost-net,queues=1,{}".format(
-                self.virtio_user0_mac, virtio_path
-            )
-        )
-        if self.BC.check_2M_hugepage_size():
-            eal_params += " --single-file-segments"
-        if force_max_simd_bitwidth:
-            eal_params += " --force-max-simd-bitwidth=512"
-        params = "--rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1"
-        if vlan_strip:
-            params = "--rx-offloads=0x0 --enable-hw-vlan-strip " + params
-        self.virtio_user0_pmd.start_testpmd(
-            cores=self.vuser0_core_list,
-            param=params,
-            eal_param=eal_params,
-            no_pci=True,
-            ports=[],
-            prefix="virtio-user0",
-            fixed_prefix=True,
-        )
-        self.virtio_user0_pmd.execute_cmd("set fwd mac")
-        self.virtio_user0_pmd.execute_cmd("start tx_first")
-        self.virtio_user0_pmd.execute_cmd("stop")
-        self.virtio_user0_pmd.execute_cmd("start")
-
-    def config_stream(self, frame_size):
-        tgen_input = []
-        rx_port = self.tester.get_local_port(self.dut_ports[0])
-        tx_port = self.tester.get_local_port(self.dut_ports[0])
-        pkt = Packet(pkt_type="UDP", pkt_len=frame_size)
-        pkt.config_layer("ether", {"dst": self.virtio_user0_mac})
-        pcap = os.path.join(
-            self.out_path, "vswitch_pvp_multi_path_%s.pcap" % (frame_size)
-        )
-        pkt.save_pcapfile(self.tester, pcap)
-        tgen_input.append((rx_port, tx_port, pcap))
-        return tgen_input
-
-    def perf_test(self, case_info):
-        for frame_size in self.frame_size:
-            self.throughput[frame_size] = dict()
-            self.logger.info(
-                "Test running at parameters: " + "framesize: {}".format(frame_size)
-            )
-            tgenInput = self.config_stream(frame_size)
-            # clear streams before add new streams
-            self.tester.pktgen.clear_streams()
-            # run packet generator
-            streams = self.pktgen_helper.prepare_stream_from_tginput(
-                tgenInput, 100, None, self.tester.pktgen
-            )
-            # set traffic option
-            traffic_opt = {"duration": 5}
-            _, pps = self.tester.pktgen.measure_throughput(
-                stream_ids=streams, options=traffic_opt
-            )
-            Mpps = pps / 1000000.0
-            linerate = (
-                Mpps
-                * 100
-                / float(self.wirespeed(self.nic, frame_size, self.number_of_ports))
-            )
-            self.throughput[frame_size][self.nb_desc] = Mpps
-            results_row = [frame_size]
-            results_row.append(case_info)
-            results_row.append(Mpps)
-            results_row.append(linerate)
-            self.result_table_add(results_row)
-        self.result_table_print()
-
-    def handle_expected(self):
-        """
-        Update expected numbers to configurate file: $DTS_CFG_FOLDER/$suite_name.cfg
-        """
-        if load_global_setting(UPDATE_EXPECTED) == "yes":
-            for frame_size in self.test_parameters.keys():
-                for nb_desc in self.test_parameters[frame_size]:
-                    self.expected_throughput[frame_size][nb_desc] = round(
-                        self.throughput[frame_size][nb_desc], 3
-                    )
-
-    def handle_results(self):
-        """
-        results handled process:
-        1, save to self.test_results
-        2, create test results table
-        3, save to json file for Open Lab
-        """
-        header = self.table_header
-        header.append("Expected Throughput")
-        header.append("Throughput Difference")
-        for frame_size in self.test_parameters.keys():
-            wirespeed = self.wirespeed(self.nic, frame_size, self.number_of_ports)
-            ret_datas = {}
-            for nb_desc in self.test_parameters[frame_size]:
-                ret_data = {}
-                ret_data[header[0]] = frame_size
-                ret_data[header[1]] = nb_desc
-                ret_data[header[2]] = "{:.3f} Mpps".format(
-                    self.throughput[frame_size][nb_desc]
-                )
-                ret_data[header[3]] = "{:.3f}%".format(
-                    self.throughput[frame_size][nb_desc] * 100 / wirespeed
-                )
-                ret_data[header[4]] = "{:.3f} Mpps".format(
-                    self.expected_throughput[frame_size][nb_desc]
-                )
-                ret_data[header[5]] = "{:.3f} Mpps".format(
-                    self.throughput[frame_size][nb_desc]
-                    - self.expected_throughput[frame_size][nb_desc]
-                )
-                ret_datas[nb_desc] = deepcopy(ret_data)
-            self.test_result[frame_size] = deepcopy(ret_datas)
-        # Create test results table
-        self.result_table_create(header)
-        for frame_size in self.test_parameters.keys():
-            for nb_desc in self.test_parameters[frame_size]:
-                table_row = list()
-                for i in range(len(header)):
-                    table_row.append(self.test_result[frame_size][nb_desc][header[i]])
-                self.result_table_add(table_row)
-        # 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 = []
-        for frame_size in self.test_parameters.keys():
-            for nb_desc in self.test_parameters[frame_size]:
-                row_in = self.test_result[frame_size][nb_desc]
-                row_dict0 = dict()
-                row_dict0["performance"] = list()
-                row_dict0["parameters"] = list()
-                row_dict0["parameters"] = list()
-                result_throughput = float(row_in["Mpps"].split()[0])
-                expected_throughput = float(row_in["Expected Throughput"].split()[0])
-                # delta value and accepted tolerance in percentage
-                delta = result_throughput - expected_throughput
-                gap = expected_throughput * -self.gap * 0.01
-                delta = float(delta)
-                gap = float(gap)
-                self.logger.info("Accept tolerance are (Mpps) %f" % gap)
-                self.logger.info("Throughput Difference are (Mpps) %f" % delta)
-                if result_throughput > expected_throughput + gap:
-                    row_dict0["status"] = "PASS"
-                else:
-                    row_dict0["status"] = "FAIL"
-                row_dict1 = dict(
-                    name="Throughput", value=result_throughput, unit="Mpps", delta=delta
-                )
-                row_dict2 = dict(
-                    name="Txd/Rxd", value=row_in["Mode/RXD-TXD"], unit="descriptor"
-                )
-                row_dict3 = dict(name="frame_size", value=row_in["Frame"], unit="bytes")
-                row_dict0["performance"].append(row_dict1)
-                row_dict0["parameters"].append(row_dict2)
-                row_dict0["parameters"].append(row_dict3)
-                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 test_perf_vswitch_pvp_split_ring_inorder_mergeable_path_performance_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 1: Vswitch PVP split ring inorder mergeable path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=0,mrg_rxbuf=1,in_order=1"
-        self.start_virtio_testpmd(virtio_path=virtio_path)
-        case_info = "split ring inorder mergeable"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def test_perf_vswitch_pvp_split_ring_inorder_no_mergeable_path_performance_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 2: Vswitch PVP split ring inorder non-mergeable path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=0,mrg_rxbuf=0,in_order=1"
-        self.start_virtio_testpmd(virtio_path=virtio_path)
-        case_info = "split ring inorder non-mergeable"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def test_perf_vswitch_pvp_split_ring_mergeable_path_performance_with_cbdma(self):
-        """
-        Test Case 3: Vswitch PVP split ring mergeable path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=0,mrg_rxbuf=1,in_order=0"
-        self.start_virtio_testpmd(virtio_path=virtio_path)
-        case_info = "split ring mergeable"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def test_perf_vswitch_pvp_split_ring_non_mergeable_path_performance_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 4: Vswitch PVP split ring non-mergeable path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=0,mrg_rxbuf=0,in_order=0"
-        self.start_virtio_testpmd(virtio_path=virtio_path, vlan_strip=True)
-        case_info = "split ring non-mergeable"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def test_perf_vswitch_pvp_split_ring_vectorized_path_performance_with_cbdma(self):
-        """
-        Test Case 5: Vswitch PVP split ring vectorized path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=0,mrg_rxbuf=0,in_order=1,vectorized=1"
-        self.start_virtio_testpmd(virtio_path=virtio_path)
-        case_info = "split ring vectorized"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def test_perf_vswitch_pvp_packed_ring_inorder_mergeable_path_performance_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 6: Vswitch PVP virtio 1.1 inorder mergeable path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=1,mrg_rxbuf=1,in_order=1"
-        self.start_virtio_testpmd(virtio_path=virtio_path)
-        case_info = "split ring inorder mergeable"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def test_perf_vswitch_pvp_packed_ring_inorder_no_mergeable_path_performance_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 7: Vswitch PVP virtio 1.1 inorder non-mergeable path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=1,mrg_rxbuf=0,in_order=1"
-        self.start_virtio_testpmd(virtio_path=virtio_path)
-        case_info = "split ring inorder non-mergeable"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def test_perf_vswitch_pvp_packed_ring_mergeable_path_performance_with_cbdma(self):
-        """
-        Test Case 8: Vswitch PVP virtio 1.1 mergeable path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=1,mrg_rxbuf=1,in_order=0"
-        self.start_virtio_testpmd(virtio_path=virtio_path)
-        case_info = "split ring mergeable"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def test_perf_vswitch_pvp_packed_ring_non_mergeable_path_performance_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 9: Vswitch PVP virtio 1.1 non-mergeable path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=1,mrg_rxbuf=0,in_order=0"
-        self.start_virtio_testpmd(virtio_path=virtio_path)
-        case_info = "split ring non-mergeable"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def test_perf_vswitch_pvp_packed_ring_vectorized_path_performance_with_cbdma(self):
-        """
-        Test Case 10: Vswitch PVP virtio 1.1 vectorized path performance with CBDMA
-        """
-        self.test_target = self.running_case
-        self.expected_throughput = self.get_suite_cfg()["expected_throughput"][
-            self.test_target
-        ]
-
-        cbdmas = self.CC.bind_cbdma_to_dpdk_driver(
-            cbdma_num=1, driver_name="vfio-pci", socket=self.ports_socket
-        )
-        ports = cbdmas
-        ports.append(self.dut.ports_info[0]["pci"])
-        self.start_vhost_app(allow_pci=ports, cbdmas=cbdmas)
-        virtio_path = "packed_vq=1,mrg_rxbuf=0,in_order=1,vectorized=1"
-        self.start_virtio_testpmd(virtio_path=virtio_path)
-        case_info = "split ring vectorized"
-        self.perf_test(case_info)
-        self.handle_expected()
-        self.handle_results()
-
-    def close_all_session(self):
-        if getattr(self, "vhost_user", None):
-            self.dut.close_session(self.vhost_user)
-        if getattr(self, "virtio-user0", None):
-            self.dut.close_session(self.virtio_user0)
-        if getattr(self, "virtio-user1", None):
-            self.dut.close_session(self.virtio_user1)
-
-    def tear_down(self):
-        """
-        Run after each test case.
-        """
-        self.virtio_user0_pmd.quit()
-        self.vhost_user.send_expect("^C", "# ", 20)
-
-    def tear_down_all(self):
-        """
-        Run after each test suite.
-        """
-        self.CC.bind_cbdma_to_kernel_driver(cbdma_idxs="all")
-        self.close_all_session()
