58. vhost/virtio multi-paths loopback test plan¶

Benchmark vhost/virtio-user loopback test with 9 tx/rx paths. Includes split ring mergeable, non-mergeable, vector_rx, inorder mergeable, inorder non-mergeable, packed ring mergeable, packed ring non-mergeable， packed ring inorder mergeable, packed ring inorder non-mergeable path.

58.1. Test Case 1: loopback test with packed ring mergeable path¶

Launch vhost by below command:

rm -rf vhost-net*
./testpmd -n 4 -l 2-4  --socket-mem 1024,1024 --legacy-mem --no-pci \
--file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac

Launch virtio-user by below command:

./testpmd -n 4 -l 5-6 --socket-mem 1024,1024 \
--legacy-mem --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,packed_vq=1,mrg_rxbuf=1,in_order=0 \
-- -i --tx-offloads=0x0 --enable-hw-vlan-strip --rss-ip --nb-cores=1 --txd=1024 --rxd=1024
>set fwd mac
>start

Send packets with vhost-testpmd,[frame_size] is the parameter changs in [64, 1518]:
```
testpmd>set txpkts [frame_size]
testpmd>start tx_first 32
```
Repeat below command to get throughput 10 times,then check the average throughput can get expected data with below command:
```
testpmd>show port stats all
```

58.2. Test Case 2: loopback test with packed ring non-mergeable path¶

Launch vhost by below command:

rm -rf vhost-net*
./testpmd -n 4 -l 2-4  --socket-mem 1024,1024 --legacy-mem --no-pci \
--file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac

Launch virtio-user by below command:

./testpmd -n 4 -l 5-6 --socket-mem 1024,1024 \
--legacy-mem --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,packed_vq=1,mrg_rxbuf=0,in_order=0 \
-- -i --tx-offloads=0x0 --enable-hw-vlan-strip --rss-ip --nb-cores=1 --txd=1024 --rxd=1024
>set fwd mac
>start

Send packets with vhost-testpmd, [frame_size] is the parameter changs in [64, 1518]:
```
testpmd>set txpkts [frame_size]
testpmd>start tx_first 32
```
Repeat below command to get throughput 10 times,then check the average throughput can get expected data with below command:
```
testpmd>show port stats all
```

58.3. Test Case 3: loopback test with packed ring inorder mergeable path¶

Launch vhost by below command:

rm -rf vhost-net*
./testpmd -n 4 -l 2-4  --socket-mem 1024,1024 --legacy-mem --no-pci \
--file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac

Launch virtio-user by below command:

./testpmd -n 4 -l 5-6 --socket-mem 1024,1024 \
--legacy-mem --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,packed_vq=1,in_order=1,mrg_rxbuf=1 \
-- -i --tx-offloads=0x0 --enable-hw-vlan-strip --rss-ip --nb-cores=1 --txd=1024 --rxd=1024
>set fwd mac
>start

Send packets with vhost-testpmd,[frame_size] is the parameter changs in [64, 1518]:
```
testpmd>set txpkts [frame_size]
testpmd>start tx_first 32
```
Repeat below command to get throughput 10 times,then check the average throughput can get expected data with below command:
```
testpmd>show port stats all
```

58.4. Test Case 4: loopback test with packed ring inorder non-mergeable path¶

Launch vhost by below command:

rm -rf vhost-net*
./testpmd -n 4 -l 2-4  --socket-mem 1024,1024 --legacy-mem --no-pci \
--file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac

Launch virtio-user by below command:

./testpmd -n 4 -l 5-6 --socket-mem 1024,1024 \
--legacy-mem --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,packed_vq=1,in_order=1,mrg_rxbuf=0 \
-- -i --tx-offloads=0x0 --enable-hw-vlan-strip --rss-ip --nb-cores=1 --txd=1024 --rxd=1024
>set fwd mac
>start

Send packets with vhost-testpmd,[frame_size] is the parameter changs in [64, 1518]:
```
testpmd>set txpkts [frame_size]
testpmd>start tx_first 32
```
Repeat below command to get throughput 10 times,then check the average throughput can get expected data with below command:
```
testpmd>show port stats all
```

58.5. Test Case 5: loopback test with split ring mergeable path¶

Launch vhost by below command:

rm -rf vhost-net*
./testpmd -n 4 -l 2-4  --socket-mem 1024,1024 --legacy-mem --no-pci \
--file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac

Launch virtio-user by below command:

./testpmd -n 4 -l 5-6 --socket-mem 1024,1024 \
--legacy-mem --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,in_order=0,mrg_rxbuf=1 \
-- -i --tx-offloads=0x0 --enable-hw-vlan-strip --rss-ip --nb-cores=1 --txd=1024 --rxd=1024
>set fwd mac
>start

Send packets with vhost-testpmd,[frame_size] is the parameter changs in [64, 1518]:
```
testpmd>set txpkts [frame_size]
testpmd>start tx_first 32
```
Repeat below command to get throughput 10 times,then check the average throughput can get expected data with below command:
```
testpmd>show port stats all
```

58.6. Test Case 6: loopback test with split ring non-mergeable path¶

Launch vhost by below command:

rm -rf vhost-net*
./testpmd -n 4 -l 2-4  --socket-mem 1024,1024 --legacy-mem --no-pci \
--file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac

Launch virtio-user by below command:

./testpmd -n 4 -l 5-6 --socket-mem 1024,1024 \
--legacy-mem --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,in_order=0,mrg_rxbuf=0 \
-- -i --tx-offloads=0x0 --enable-hw-vlan-strip --rss-ip --nb-cores=1 --txd=1024 --rxd=1024
>set fwd mac
>start

Send packets with vhost-testpmd,[frame_size] is the parameter changs in [64, 1518]:
```
testpmd>set txpkts [frame_size]
testpmd>start tx_first 32
```
Repeat below command to get throughput 10 times,then check the average throughput can get expected data with below command:
```
testpmd>show port stats all
```

58.7. Test Case 7: loopback test with split ring vector_rx path¶

Launch vhost by below command:

rm -rf vhost-net*
./testpmd -n 4 -l 2-4  --socket-mem 1024,1024 --legacy-mem --no-pci \
--file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac

Launch virtio-user by below command:

./testpmd -n 4 -l 5-6 --socket-mem 1024,1024 \
--legacy-mem --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,in_order=0,mrg_rxbuf=0 \
-- -i --nb-cores=1 --txd=1024 --rxd=1024
>set fwd mac
>start

Send packets with vhost-testpmd,[frame_size] is the parameter changs in [64, 1518]:
```
testpmd>set txpkts [frame_size]
testpmd>start tx_first 32
```
Repeat below command to get throughput 10 times,then check the average throughput can get expected data with below command:
```
testpmd>show port stats all
```

58.8. Test Case 8: loopback test with split ring inorder mergeable path¶

Launch vhost by below command:

rm -rf vhost-net*
./testpmd -n 4 -l 2-4  --socket-mem 1024,1024 --legacy-mem --no-pci \
--file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac

Launch virtio-user by below command:

./testpmd -n 4 -l 5-6 --socket-mem 1024,1024 \
--legacy-mem --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,in_order=1,mrg_rxbuf=1 \
-- -i --tx-offloads=0x0 --enable-hw-vlan-strip --rss-ip --nb-cores=1 --txd=1024 --rxd=1024
>set fwd mac
>start

Send packets with vhost-testpmd,[frame_size] is the parameter changs in [64, 1518]:
```
testpmd>set txpkts [frame_size]
testpmd>start tx_first 32
```
Repeat below command to get throughput 10 times,then check the average throughput can get expected data with below command:
```
testpmd>show port stats all
```

58.9. Test Case 9: loopback test with split ring inorder non-mergeable path¶

Launch vhost by below command:

rm -rf vhost-net*
./testpmd -n 4 -l 2-4  --socket-mem 1024,1024 --legacy-mem --no-pci \
--file-prefix=vhost --vdev 'net_vhost0,iface=vhost-net,queues=1,client=0' -- -i --nb-cores=1 --txd=1024 --rxd=1024
testpmd>set fwd mac

Launch virtio-user by below command:

./testpmd -n 4 -l 5-6 --socket-mem 1024,1024 \
--legacy-mem --no-pci --file-prefix=virtio \
--vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net,in_order=1,mrg_rxbuf=0 \
-- -i --tx-offloads=0x0 --enable-hw-vlan-strip --rss-ip --nb-cores=1 --txd=1024 --rxd=1024
>set fwd mac
>start

Send packets with vhost-testpmd,[frame_size] is the parameter changs in [64, 1518]:
```
testpmd>set txpkts [frame_size]
testpmd>start tx_first 32
```
Repeat below command to get throughput 10 times,then check the average throughput can get expected data with below command:
```
testpmd>show port stats all
```