I have done some testing recently with 10GbE on RouterOS. (pictures hopefully attached).
network-diagram.png
bandwidth-uni-directional.png
bandwidth-bi-directional2.png
A very simple routed network between the two test machines.
I was using a small Athlon 3GHz dual core with 2gigs of RAM. The 10GbE cards were an Intel X540-T2 (copper) and an intel X520-SR2 (MM Fiber). Throughput was not too bad but as you can see, my CPU on the Athlon kept maxing out.
I was running this between two other machines (both i5's), one with the X540 and the other with the X520 card.
The test was done between the two machines using Iperf on Ubuntu 12.04. CPU load averaged about 25% across each of the four cores to generate the traffic.
RouterOS version used: 6.0rc11 x86
I plan on doing this test again with a dual processor machine as the RouterOS box in the future.
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