I am migrating an application that forwards packets from one IP in IP (ipv4) tunnel to another tunnel.
Running on a standard x86 server, we were able to achieve steady 300Mbps performance.
However, running the exact setup as a guest OS, the performance is now down to 30Mbps (90% decrease)
I have checked the following:
1. Running the latest NIC driver VMXNET3
2. Installing VMware guest tools.
Has anyone encountered similar issues? Any recommendations?