Ken, this appears to be a bug. It may be in Tcpreplay, and it may be in Netmap.
What version of Netmap are you using?
I opened the following issue so that it can be further investigated.
https://github.com/appneta/tcpreplay/issues/427
<https://github.com/appneta/tcpreplay/issues/427>
Fred.
> On Nov 30, 2017, at 12:53 PM, ken adey <ken.a...@cyglass.com> wrote:
>
> On ubuntu 16 (Intel D-1500 SoC) using tcpreplay version 4.2.5 (build
> git:v4.2.5) testing thru an Intel X520 10Gbe, when using the "-t" option it's
> reporting throughput of > 10Gbs:
>
> root@send:/home/mzealadmin# taskset -c 0 tcpreplay -t --intf1=enp6s0f1 -K
> --netmap --no-flow-stats large.pcap
> Switching network driver for enp6s0f1 to netmap bypass mode... done!
> File Cache is enabled
> Actual: 81706489 packets (42796983763 bytes) sent in 20.65 seconds
> Rated: 2072292454.1 Bps, 16578.33 Mbps, 3956347.52 pps
> Statistics for network device: enp6s0f1
> Successful packets: 81706489
> Failed packets: 0
> Truncated packets: 0
> Retried packets (ENOBUFS): 0
> Retried packets (EAGAIN): 15165240
> Switching network driver for enp6s0f1 to normal mode... done!
>
>
> Is this possible?
>
> ps. the pcap used is a capture of a looped replay (around 40GB) of the
> test.pcap provided with tcpreplay.
>
> Thanks.
>
> Ken....
>
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