Hi, I have enable multi-queue feature on nic card and I am getting normal throughput as 26 Gbps. But when I am trying throughput test with IPsec I am getting only max 1.5Gbps. After looking at CPU usages, it is free more than 50%, I am not getting why low throughput in ipsec case. Below are my trial: 2nd, I tried to distribute multi-queue interrupt on mult-cpu but got same result. 3rd, I tried nic passthrough and enable RSS, I got good throughput and CPU usages. Please help me to understand how to increase vnet performance for VM. And also suggest me about ovirt setting. I have also seen some presentation in google around virtio-crypto but as I am using Guest and Host OS as centos 7.3, I can't use virtio-crypto device. Thanks, ~Rohit