I reran the speedtest on physical Windows 8.1 without pfSense inbetween the box and the internet and the numbers for that are 60 Mbps down, 59 Mbps up. Not the same test obviously due to using different host OS+product, but same technology and just mentioning it as a reference.

The NICs are 'e1000' and memory of the VM is set to 272Mb, single CPU, pfSense 2.2-RELEASE (i386) When I then look at the CPU usage of the pfSense NAT firewall that is inbetween it initially goes up to 39% for a bit after which it goes down to 20% while still running at full speed. I take it that it is the pfSense process that is running the high CPU? The speedtest code is in flash and flash isn't exactly CPU friendly either, especially not when that part is run from within a VM.įor the record I just ran the test here (but I'm on Fusion 7.1.1, not workstation) and on my 60Mb/sec fiber I get a respectable 60Mbps down, 52 Mbps up. Unfortunately your screenshot doesn't show me any details as to what process is running high CPU. (the test is running from my workstation, whilst the performance stats are from a RDP session to the box). Here's a pic showing the kind of loads experienced during that speed test.

Virtualbox vs vmware fusion