Pfsense 2.2 esxi 5.5U2 vmxnet3 - slow
I have two esxi5 with 10ge connectios, 2 x pfense, vmware tools (vmxnet3). When doing iperf between the two vms network is really slow 300-400Mbits/sec :(
could you try with a clean install without vmware-tools ? (to try with the builtin vmxnet3 drivers).
most people manage to get around 1.5-2 gbit/s pushed through when using vmxnet3 adapters … so something is probably going wrong.
are the cpu's maxed out when checking this from your vsphere client?
see this thread: https://forum.pfsense.org/index.php?topic=87675.0