On 02/04/2015 01:25 PM, Chandrika Gautam wrote:
> We have Intel Corporation 82599EB 10 Gigabit TN Network Connection NIC
> on which 2 ports are connected using cross cable. On one port let say
> eth5, I am trying to send the data with 5/10 Gbps using example pfsend
> and reading on other port let say eth4 using pfcount. But pfsend is
> able to send the data with rate 2.4 Gbps only.
> For ex -
> ./pfsend -i eth5 -n 0 -g 0 -r 10 -f
> /home/roamware/work/logs/ipprobe/dumps/processed/5GB.pcap
> Sending packets on eth5
> Using PF_RING v.6.0.3
> Estimated CPU freq: 3014410000 Hz
> Read 10536074 packets from pcap file
> /home/roamware/work/logs/ipprobe/dumps/processed/5GB.pcap
> Number of 475-byte Packet Per Second at 10.00 Gbit/s: 2525252.53
> NOT using zero-copy: not supported by the driver
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

You forgot to load the ZC driver and open the nic as "-i zc:eth5"

Luca

> Dumping statistics on /proc/net/pf_ring/stats/32318-eth5.73ts]
> TX rate: [current 556'628.27 pps/2.14 Gbps][average 551'934.83
> pps/2.11 Gbps][total 1'655'863.00 pkts]
> TX rate: [current 593'006.04 pps/2.34 Gbps][average 562'202.85
> pps/2.17 Gbps][total 2'248'907.00 pkts
> TX rate: [current 552'777.78 pps/2.21 Gbps][average 554'006.86
> pps/2.14 Gbps][total 3'878'222.00 pkts]
> TX rate: [current 576'390.79 pps/2.30 Gbps][average 559'446.02
> pps/2.19 Gbps][total 5'594'712.00 pkts]
>
> Could you please help if I am missing something.
>
> Regards
>
>
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