Eric Dumazet a écrit :
quoted text
> 
> Hmm, do you know part of the error comes from the user tool itself ?
> 
> If you check iperf results at sender and receiver you'll see different
> values, sender lies a bit.
> 
> Tried here on a Gbit link (I dont have 10Gbe yet)
> 
> $ ./iperf.bench.sh
> .100 104
> .200 206
> .300 307
> .400 413
> .500 515
> .600 610
> .700 715
> .800 822
> .900 913
> 1.000 945
> 
(that was with standard 1500 MTU)

Now, with 9000 MTU and 50 seconds samples (instead of 5 s) I get :

$ ./iperf.bench.sh
.100 101
.200 200
.300 301
.400 401
.500 500
.600 601
.700 700
.800 803
.900 903
1.000 991

Not too bad :)
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