How to use the DPDK interface to complete message transmission and reception in Trex

[neutron-L]

Hello, I am using Trex in a virtual machine in the qemu/kvm environment to test my developed DPDK application. I need to configure the physical server and kvm with physical core binding and numa large page memory to achieve basic packet loss free DPDK application. However, Trex does not require any binding core and memory pre allocation configuration to achieve packet loss free. I would like to know how Trex uses the native interface of DPDK to complete packet transmission and reception. Did Trex perform any additional performance optimization operations?
Looking forward to your reply and wishing you a happy life.