netmap bridge can tranmit big packet in line rate ?

liujie liujie at 263.net
Tue May 21 09:25:17 UTC 2013


Hi, Prof.Luigi RIZZO
   
 Firstly i should thank you for netmap. I tried to send a e-mail to you
yestoday, but it was rejected.

 I used two machines to test netmap bridge. all with i7-2600 cpu and intel
82599 dual-interfaces card.

 One worked as sender and receiver with pkt-gen, the other worked as bridge
with bridge.c.

 as you said,I feeled comfous too when i saw the big packet performance
dropped, i tried to change the memory parameters of netmap(netmap_mem1.c
netmap_mem2.c),but it seemed that  can not resove the problem.
  60-byte packet send 14882289 pps  recv  13994753 pps
  124-byte         send   8445770 pps  recv    7628942 pps
  252-byte         send   4529819 pps  recv     3757843 pps
  508-byte         send    2350815 pps  recv    1645647 pps
  1514-byte       send    814288 pps     recv  489133 pps

 sender command: pkt-gen -i ix0 -t   500000000 -l 60
 receiver command: pkt-gen -i ix1 -r  500000000
bridge(other machine) command:bridge -i ix0 -i ix1

 can sender and receiver on a same machine ? 

 thank you for your reply.

 


  



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