have a look at wire speed of tap adapter,  https://yadi.sk/i/zz4WbnOHe3hJf
I see 10mb

2015-01-17 0:02 GMT+05:00 Dan Moulding <[email protected]>:
> Hello all,
>
> I have been extensively testing OpenVPN recently, for potential deployment 
> with some other systems I have been developing. One thing I have noticed 
> during this testing is that performance of Windows clients connected to a 
> Linux server is significantly slower than the performance of Linux clients 
> with identical configurations.
>
> I'm suspecting that it's either the Windows network stack itself (seems a 
> little doubtful) or the Windows implementation of the TAP driver that is 
> causing the poor performance. I'm hoping I can profile the TAP driver code to 
> see if I can confirm the latter (and maybe contribute some optimizations if 
> it all works out).
>
> Has anyone here ever tried profiling the Windows TAP driver code before? Any 
> pointers or suggestions from someone who is familiar with the TAP driver 
> would be really appreciated.
>
> Thanks,
>
> Dan Moulding
> Software Engineer
> RackWare, Inc.
>
>
>
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