e1000 adapter in my FreeNAS VM. My Ubuntu iPerf test VMs always ran the VMXNET3. No Jumbo Frames:
iPerfTestClient (VMXNET 3) -> FreeNAS (e1000) - ~ 1.7Gbits/sec
brian@iPerfTestClient:~$ iperf -c 192.168.30.101
------------------------------------------------------------
Client connecting to...
Sorry for posting on such an old thread... couldn't find anyone others with my exact issue.
Thanks for your post!
I was experiencing similar issues running a FreeNAS VM on top of ESXi 5.5. I eventually setup a second virtual switch and added another interface to my FreeNAS and Ubuntu VMs to...