diff mbox series

[V1] test_plans/vm2vm_virtio_net_perf_cbdma & vswitch_sample_cbdma: Optimize launch qemu parameters

Message ID 20230427074216.7553-1-dukaix.yuan@intel.com (mailing list archive)
State Superseded
Headers
Series [V1] test_plans/vm2vm_virtio_net_perf_cbdma & vswitch_sample_cbdma: Optimize launch qemu parameters |

Commit Message

Yuan, DukaiX April 27, 2023, 7:42 a.m. UTC 
Optimize the mem-path mount location, and change from /mnt/huge to /dev/hugepages. 
This can successfully start a VM with a larger memory.
Secure Copy (scp) is used to verify whether the vm2vm established connection successful.
1MB file size is too small, which may cause verification failure.
So,change file size from 1MB to 10MB.

Signed-off-by: Dukai Yuan <dukaix.yuan@intel.com>
---
 .../vm2vm_virtio_net_perf_cbdma_test_plan.rst | 344 ++++++++++--------
 test_plans/vswitch_sample_cbdma_test_plan.rst | 136 ++++---
 2 files changed, 262 insertions(+), 218 deletions(-)

Comments

Ling, WeiX April 27, 2023, 10:01 a.m. UTC | #1 
> -----Original Message-----
> From: Dukai Yuan <dukaix.yuan@intel.com>
> Sent: Thursday, April 27, 2023 3:42 PM
> To: dts@dpdk.org
> Cc: Yuan, DukaiX <dukaix.yuan@intel.com>
> Subject: [PATCH V1] test_plans/vm2vm_virtio_net_perf_cbdma &
> vswitch_sample_cbdma: Optimize launch qemu parameters
> 
> Optimize the mem-path mount location, and change from /mnt/huge to
> /dev/hugepages.
> This can successfully start a VM with a larger memory.
> Secure Copy (scp) is used to verify whether the vm2vm established
> connection successful.
> 1MB file size is too small, which may cause verification failure.
> So,change file size from 1MB to 10MB.
> 
> Signed-off-by: Dukai Yuan <dukaix.yuan@intel.com>
> ---

Acked-by: Wei Ling <weix.ling@intel.com>
diff mbox series

Patch

diff --git a/test_plans/vm2vm_virtio_net_perf_cbdma_test_plan.rst b/test_plans/vm2vm_virtio_net_perf_cbdma_test_plan.rst
index 87e91c17..abcd3d88 100644
--- a/test_plans/vm2vm_virtio_net_perf_cbdma_test_plan.rst
+++ b/test_plans/vm2vm_virtio_net_perf_cbdma_test_plan.rst
@@ -113,23 +113,27 @@  by verifing the TSO/cksum in the TCP/IP stack when vhost uses the asynchronous o
 3. Launch VM1 and VM2::
 
 	taskset -c 32 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/ubuntu22-04.img  \
-	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 -device virtio-serial \
-	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.2 -daemonize \
-	-monitor unix:/tmp/vm1_monitor.sock,server,nowait -device e1000,netdev=nttsip1 \
-	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6002-:22 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-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,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :10
 
 	taskset -c 33 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/ubuntu22-04-2.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-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,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 \
 	-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,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :12
@@ -155,7 +159,7 @@  by verifing the TSO/cksum in the TCP/IP stack when vhost uses the asynchronous o
 
 Test Case 2: VM2VM virtio-net split ring mergeable 8 queues CBDMA enable test with large packet payload valid check
 -------------------------------------------------------------------------------------------------------------------
-This case uses iperf and scp to test the payload of large packet (larger than 1MB) is valid after packets forwarding in 
+This case uses iperf and scp to test the payload of large packet (larger than 1MB) is valid after packets forwarding in
 vm2vm vhost-user/virtio-net split ring mergeable path when vhost uses the asynchronous operations with CBDMA channels.
 The dynamic change of multi-queues number and iova as VA and PA mode also test.
 
@@ -173,28 +177,30 @@  The dynamic change of multi-queues number and iova as VA and PA mode also test.
 3. Launch VM1 and VM2 using qemu::
 
 	taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=./vhost-net0,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10
 
 	taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12
 
 4. On VM1, set virtio device IP and run arp protocal::
 
@@ -208,7 +214,7 @@  The dynamic change of multi-queues number and iova as VA and PA mode also test.
 	ifconfig ens5 1.1.1.8
 	arp -s 1.1.1.2 52:54:00:00:00:01
 
-6. Scp 1MB file form VM1 to VM2::
+6. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -254,7 +260,7 @@  The dynamic change of multi-queues number and iova as VA and PA mode also test.
 
 	ethtool -L ens5 combined 4
 
-15. Scp 1MB file form VM1 to VM2::
+15. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -279,7 +285,7 @@  The dynamic change of multi-queues number and iova as VA and PA mode also test.
 
 	ethtool -L ens5 combined 1
 
-20. Scp 1MB file form VM1 to VM2M, check packets can be forwarding success by scp::
+20. Scp 10MB file form VM1 to VM2M, check packets can be forwarding success by scp::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -291,7 +297,7 @@  The dynamic change of multi-queues number and iova as VA and PA mode also test.
 Test Case 3: VM2VM virtio-net split ring non-mergeable 8 queues CBDMA enable test with large packet payload valid check
 -----------------------------------------------------------------------------------------------------------------------
 This case uses iperf and scp to test the payload of large packet (larger than 1MB) is valid after packets forwarding in
-vm2vm vhost-user/virtio-net split ring non-mergeable path when vhost uses the asynchronous operations with CBDMA channels. 
+vm2vm vhost-user/virtio-net split ring non-mergeable path when vhost uses the asynchronous operations with CBDMA channels.
 The dynamic change of multi-queues number and the reconnection also test.
 
 1. Bind 16 CBDMA channels to vfio-pci, as common step 1.
@@ -309,28 +315,30 @@  The dynamic change of multi-queues number and the reconnection also test.
 3. Launch VM1 and VM2::
 
 	taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=./vhost-net0,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=off,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=off,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10
 
 	taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=off,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=off,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12
 
 4. On VM1, set virtio device IP and run arp protocal::
 
@@ -344,7 +352,7 @@  The dynamic change of multi-queues number and the reconnection also test.
 	ifconfig ens5 1.1.1.8
 	arp -s 1.1.1.2 52:54:00:00:00:01
 
-6. Scp 1MB file form VM1 to VM2::
+6. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -371,7 +379,7 @@  The dynamic change of multi-queues number and the reconnection also test.
 	-- -i --nb-cores=4 --txd=1024 --rxd=1024 --txq=8 --rxq=8
 	testpmd>start
 
-11. Scp 1MB file form VM1 to VM2::
+11. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -395,7 +403,7 @@  The dynamic change of multi-queues number and the reconnection also test.
 
 	ethtool -L ens5 combined 1
 
-16. Scp 1MB file form VM1 to VM2M, check packets can be forwarding success by scp::
+16. Scp 10MB file form VM1 to VM2M, check packets can be forwarding success by scp::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -433,28 +441,30 @@  and perform SW checksum in Rx/Tx path.
 3. Launch VM1 and VM2 using qemu::
 
 	taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=./vhost-net0,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=16 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=off,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=off,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :10
 
 	taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=16 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=off,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=off,guest_ecn=on,guest_ufo=on,host_ufo=on -vnc :12
 
 4. On VM1, set virtio device IP and run arp protocal::
 
@@ -468,7 +478,7 @@  and perform SW checksum in Rx/Tx path.
 	ifconfig ens5 1.1.1.8
 	arp -s 1.1.1.2 52:54:00:00:00:01
 
-6. Scp 1MB file form VM1 to VM2::
+6. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -495,28 +505,30 @@  by verifing the TSO/cksum in the TCP/IP stack when vhost uses the asynchronous o
 3. Launch VM1 and VM2 on socket 1 with qemu::
 
 	taskset -c 32 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/ubuntu22-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-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,disable-modern=false,mrg_rxbuf=on,\
-	csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10
 
 	taskset -c 33 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/ubuntu22-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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,disable-modern=false,mrg_rxbuf=on,\
-	csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :12
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :12
 
 4. On VM1, set virtio device IP and run arp protocal::
 
@@ -557,28 +569,32 @@  vm2vm vhost-user/virtio-net packed ring mergeable path and 8 queues when vhost u
 3. Launch VM1 and VM2 with qemu::
 
 	taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+    -chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 -daemonize \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 \
 	-chardev socket,id=char0,path=./vhost-net0 \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on \
+	-vnc :10
 
 	taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on \
+	-vnc :12
 
 4. On VM1, set virtio device IP and run arp protocal::
 
@@ -592,7 +608,7 @@  vm2vm vhost-user/virtio-net packed ring mergeable path and 8 queues when vhost u
 	ifconfig ens5 1.1.1.8
 	arp -s 1.1.1.2 52:54:00:00:00:01
 
-6. Scp 1MB file form VM1 to VM2::
+6. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -623,28 +639,30 @@  vm2vm vhost-user/virtio-net packed ring non-mergeable path and 8 queues when vho
 3. Launch VM1 and VM2::
 
 	taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=./vhost-net0 \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=off,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=off,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10
 
 	taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=off,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=off,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12
 
 4. On VM1, set virtio device IP and run arp protocal::
 
@@ -658,7 +676,7 @@  vm2vm vhost-user/virtio-net packed ring non-mergeable path and 8 queues when vho
 	ifconfig ens5 1.1.1.8
 	arp -s 1.1.1.2 52:54:00:00:00:01
 
-6. Scp 1MB file form VM1 to VM2::
+6. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -698,28 +716,30 @@  and perform SW checksum in Rx/Tx path.
 3. Launch VM1 and VM2 with qemu::
 
 	taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -m 4096 \
-	-object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge1G0,share=on \
-	-numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu22-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=./vhost-net0 \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=16 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=off,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=off,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10
 
 	taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -m 4096 \
-	-object memory-backend-file,id=mem,size=4096M,mem-path=/mnt/huge1G1,share=on \
-	-numa node,memdev=mem -mem-prealloc -drive file=/home/osimg/ubuntu22-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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,queues=16 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=off,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=off,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12
 
 4. On VM1, set virtio device IP and run arp protocal::
 
@@ -733,7 +753,7 @@  and perform SW checksum in Rx/Tx path.
 	ifconfig ens5 1.1.1.8
 	arp -s 1.1.1.2 52:54:00:00:00:01
 
-6. Scp 1MB file form VM1 to VM2::
+6. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -764,28 +784,30 @@  and the dma ring size is small.
 3. Launch VM1 and VM2 on socket 1 with qemu::
 
 	taskset -c 32 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/ubuntu22-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-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,disable-modern=false,mrg_rxbuf=on,\
-	csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10
 
 	taskset -c 33 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/ubuntu22-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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,disable-modern=false,mrg_rxbuf=on,\
-	csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :12
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :12
 
 4. On VM1, set virtio device IP and run arp protocal::
 
@@ -797,7 +819,7 @@  and the dma ring size is small.
 	ifconfig ens5 1.1.1.8
 	arp -s 1.1.1.2 52:54:00:00:00:01
 
-6. Scp 1MB file form VM1 to VM2::
+6. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
@@ -828,28 +850,30 @@  vm2vm vhost-user/virtio-net packed ring mergeable path and 8 queues  with legacy
 3. Launch VM1 and VM2 with qemu::
 
 	taskset -c 32 qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=./vhost-net0 \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :10
 
 	taskset -c 40 qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 8 -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/ubuntu22-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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,queues=8 \
-	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,\
-	mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12
+	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,mq=on,vectors=40,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,guest_ufo=on,host_ufo=on,packed=on -vnc :12
 
 4. On VM1, set virtio device IP and run arp protocal::
 
@@ -863,7 +887,7 @@  vm2vm vhost-user/virtio-net packed ring mergeable path and 8 queues  with legacy
 	ifconfig ens5 1.1.1.8
 	arp -s 1.1.1.2 52:54:00:00:00:01
 
-6. Scp 1MB file form VM1 to VM2::
+6. Scp 10MB file form VM1 to VM2::
 
 	Under VM1, run: `scp <xxx> root@1.1.1.8:/`   <xxx> is the file name
 
diff --git a/test_plans/vswitch_sample_cbdma_test_plan.rst b/test_plans/vswitch_sample_cbdma_test_plan.rst
index 6d1b76c9..a93ebff2 100644
--- a/test_plans/vswitch_sample_cbdma_test_plan.rst
+++ b/test_plans/vswitch_sample_cbdma_test_plan.rst
@@ -177,12 +177,14 @@  This case checks that the split ring with CBDMA channel can work stably when the
 3. Start VM0 with qemu::
 
 	qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.2 -daemonize \
 	-chardev socket,id=char0,path=/root/dpdk/vhost-net0,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :10
@@ -190,12 +192,14 @@  This case checks that the split ring with CBDMA channel can work stably when the
 4. Start VM1 with qemu::
 
 	qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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=/root/dpdk/vhost-net1,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=true,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :12
@@ -263,12 +267,14 @@  This case checks that the packed ring with CBDMA channel can work stably when th
 3. Start VM0 with qemu::
 
 	qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=/root/dpdk/vhost-net0,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10
@@ -276,12 +282,14 @@  This case checks that the packed ring with CBDMA channel can work stably when th
 4. Start VM1 with qemu::
 
 	qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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=/root/dpdk/vhost-net1,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=on,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :12
@@ -344,12 +352,14 @@  This case tests with split ring with cbdma channels in two VMs, check that iperf
 3. Start VM1 with qemu::
 
 	taskset -c 5,6 /usr/local/qemu-6.2.0/bin/qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=/root/dpdk/vhost-net0,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=true,mrg_rxbuf=off,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :10
@@ -357,12 +367,14 @@  This case tests with split ring with cbdma channels in two VMs, check that iperf
 4. Start VM2 with qemu::
 
 	taskset -c 7,8 /usr/local/qemu-6.2.0/bin/qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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=/root/dpdk/vhost-net1,server \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=off,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on -vnc :12
@@ -384,7 +396,7 @@  This case tests with split ring with cbdma channels in two VMs, check that iperf
 
 8. Check iperf throughput can get x Gbits/sec.
 
-9. Scp 1MB file form VM0 to VM1, check packets can be forwarding success by scp::
+9. Scp 10MB file form VM1 to VM2, check packets can be forwarding success by scp::
 
 	Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name
 
@@ -411,12 +423,14 @@  This case tests with packed ring with 4 cbdma channels in two VMs, check that ip
 3. Start VM1::
 
 	qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=/root/dpdk/vhost-net0 \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=off,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10
@@ -424,12 +438,14 @@  This case tests with packed ring with 4 cbdma channels in two VMs, check that ip
 4. Start VM2::
 
 	qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-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=/root/dpdk/vhost-net1 \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=off,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :12
@@ -451,7 +467,7 @@  This case tests with packed ring with 4 cbdma channels in two VMs, check that ip
 
 8. Check iperf throughput can get x Gbits/sec.
 
-9. Scp 1MB file form VM1 to VM2M, check packets can be forwarding success by scp::
+9. Scp 10MB file form VM1 to VM2M, check packets can be forwarding success by scp::
 
 	Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name
 
@@ -471,12 +487,14 @@  This case tests with packed ring with 2 cbdma channels in two VMs, check that ip
 3. Start VM1::
 
 	qemu-system-x86_64 -name vm1 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04.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 \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004.img  \
+	-monitor unix:/tmp/vm1_monitor.sock,server,nowait \
+    -device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6000-:22 \
+	-chardev socket,path=/tmp/vm1_qga0.sock,server,nowait,id=vm1_qga0 \
+	-device virtio-serial \
+	-device virtserialport,chardev=vm1_qga0,name=org.qemu.guest_agent.1 -daemonize \
 	-chardev socket,id=char0,path=/root/dpdk/vhost-net0 \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:01,disable-modern=false,mrg_rxbuf=off,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :10
@@ -484,12 +502,14 @@  This case tests with packed ring with 2 cbdma channels in two VMs, check that ip
 4. Start VM2::
 
 	qemu-system-x86_64 -name vm2 -enable-kvm -cpu host -smp 4 -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/ubuntu20-04-2.img  \
-	-chardev socket,path=/tmp/vm2_qga0.sock,server,nowait,id=vm2_qga0 -device virtio-serial \
+	-object memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on \
+	-numa node,memdev=mem -mem-prealloc -drive file=/home/image/ubuntu2004_2.img  \
+	-monitor unix:/tmp/vm2_monitor.sock,server,nowait \
+	-device e1000,netdev=nttsip1 \
+	-netdev user,id=nttsip1,hostfwd=tcp:127.0.0.1:6001-:22 \
+	-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=/root/dpdk/vhost-net1 \
 	-netdev type=vhost-user,id=netdev0,chardev=char0,vhostforce \
 	-device virtio-net-pci,netdev=netdev0,mac=52:54:00:00:00:02,disable-modern=false,mrg_rxbuf=off,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ecn=on,packed=on -vnc :12
@@ -511,7 +531,7 @@  This case tests with packed ring with 2 cbdma channels in two VMs, check that ip
 
 8. Check iperf throughput can get x Gbits/sec.
 
-9. Scp 1MB file form VM1 to VM2M, check packets can be forwarding success by scp::
+9. Scp 10MB file form VM1 to VM2M, check packets can be forwarding success by scp::
 
 	Under VM1, run: `scp [xxx] root@1.1.1.8:/`   [xxx] is the file name