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Subject: Re: Gigabit Ethernet performance with Realtek 8111E
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On Sat, Nov 12, 2011 at 03:04:13PM +0100, Michael La?? wrote:
> I should have tried this earlier:
> 
> When using Windows instead of Linux on the other host I don't have any
> problems. I'm getting a constant transfer rate of over 500Mbit/s without
> a single frame missed on the freebsd-machine.
> 
> So maybe this problem is more related to the ATL1E driver in the linux
> kernel.
> 

Hmm, it smells like GSO/TSO related issue of Linux ATL1E driver to
me.  Would you turn both features OFF on Linux box and try it again?