Ccing Dlos and Mugunthan Hi Ben,
On Tue, Apr 23, 2013 at 4:31 PM, Ben Wang <benfoun...@gmail.com> wrote: > Hi Lad, > > I am a engineer working on dm365. Currently I am using linux kernel > 2.6.37. But I found the network performance is not as good as the one > on kernel 2.6.18. > > Here is the test results I got. > > With kernel 2.6.18 > # ./iperf -c 192.168.1.70 -w 32768 -d -t 60 > ------------------------------------------------------------ > Server listening on TCP port 5001 > TCP window size: 64.0 KByte (WARNING: requested 32.0 KByte) > ------------------------------------------------------------ > ------------------------------------------------------------ > Client connecting to 192.168.1.70, TCP port 5001 > TCP window size: 64.0 KByte (WARNING: requested 32.0 KByte) > ------------------------------------------------------------ > [ 5] local 192.168.1.99 port 4578 connected with 192.168.1.70 port 5001 > [ 4] local 192.168.1.99 port 5001 connected with 192.168.1.70 port 4509 > [ ID] Interval Transfer Bandwidth > [ 5] 0.0-60.0 sec 325 MBytes 45.4 Mbitsc > [ 4] 0.0-59.9 sec 353 MBytes 49.4 Mbitsc > > > With kernel 2.6.37 > ./iperf -c 192.168.1.70 -w 32768 -d -t 60 > ------------------------------------------------------------ > Server listening on TCP port 5001 > TCP window size: 64.0 KByte (WARNING: requested 32.0 KByte) > ------------------------------------------------------------ > ------------------------------------------------------------ > Client connecting to 192.168.1.70, TCP port 5001 > TCP window size: 64.0 KByte (WARNING: requested 32.0 KByte) > ------------------------------------------------------------ > [ 3] local 192.168.1.77 port 55370 connected with 192.168.1.70 port 5001 > [ 5] local 192.168.1.77 port 5001 connected with 192.168.1.70 port 4624 > [ ID] Interval Transfer Bandwidth > [ 3] 0.0-60.0 sec 248 MBytes 34.6 Mbitsc > [ 5] 0.0-60.0 sec 127 MBytes 17.7 Mbitsc > > I compared the source code of 2.6.37 with 2.6.32. The driver for dm365 > emac part changed dramatically. I suspect the somewhere make the > performance drop. > > So can you take a look at it? Our project is blocked on this performance > issue. > I would have loved to help you but unfortunately I am not a network driver expert I am good at multimedia only. Regards, --Prabhakar > Thanks a lot, > Ben _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source@linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
