Folk, I have deployed DPDK on one of my compute nodes to reply to my sriov deployment which doesn't support bonding. This is what I am doing to do a performance benchmark. Spun up VM with 8 vCPU and 8GB memory with single virtual nic. Then install nuttcp tool and start nuttcp -S (server mode) and then use Physical server outside my lab and use following command to blast some traffic nuttcp -T 30 -i -u -w4m -R 2G 10.69.7.130 I found 120kpps rate working fine but after that I noticed a packet drop on nuttcp. Here is the full details of my deployment and load-test result - https://paste.opendev.org/show/809675/ Small confusion related hugepage - I am seeing following in /dev/hugepages/ I believe rtemap_0 created by DPDK root@ovn-lab-comp-dpdk-1:~# ls -l /dev/hugepages/rtemap_0 -rw------- 1 root root 1073741824 Sep 29 02:28 /dev/hugepages/rtemap_0 Why is the qemu instance file empty? Does that mean it's not using a huge page for dpdk performance? root@ovn-lab-comp-dpdk-1:~# ls -l /dev/hugepages/libvirt/qemu/1-instance-00000045/ total 0 I have hw:mem_page_size='large' setting in flavor so it should use hugepage. am i missing something?