I mean I see 3.5 GB data after 8 seconds from "ifconfig tnapi0" on the Rx port if pfcount_multichannel is reading ( and showing lesser numbers itself ) ...else the count does not go up. Once we see all bits pumped from Tx port ( around 3.8 Gbps ) I am going to try DNA on Tx initially. If I see no packet loss with my parallelized app ( thread processes packet on core it was received ) with TNAPI , I am going to stick to TNAPI else move to DNA for Rx. Is there a trial license included in the svn repository for DNA ? How many ports can we use it on one machine?
Do we need to run multiple pfcount_multichannel for MQ=1,1 setting for ixgbe ? The context is TNAPI... Or a single queue is better performing given that still the packet is processed on the same core it was received on, by individual threads running per core . Soumyendra On Sat, Nov 19, 2011 at 6:46 PM, Soumyendra Narayan Saha (Vehere) <[email protected]> wrote: > I am using PF_RING aware ixgbe ( simple "insmod ixgbe.ko" ) on a Dell > server(8 core CPU ) for Tx and TNAPIv2 enabled ixgbe on the Rx > interface on a HP server ( 32 core CPU ). Both sides have dca and > ioatdma. > pfsend on eth0 using a .pcap file is not exceeding 3.8 Gbps ( which is > OK considering it is not DNA or TNAPI ), but on the Rx interface I see > some strange number. > > 1. First the ifconfig tnapi0 Rx stats don't go up when no application > is reading from the interface ( which is OK I think and I guess is a > change because of the TNAPI changes to driver or transparent_mode=2 I > am using at pf_ring insmod) . But I do see correct number of bits > pumped from the Tx port 9 ( approx 3.5 GB data after 8 secs , giving > one second approx for each bit ) > > 2. The pfcount_multichannel using "pfcount_multichannel -i tnapi0" is > showing only about 300 Mbps aggregate on all 16 channels ( this is a > 32 core HP server ). The first channel ( 0 ) seems to attract more > traffic - around 250 Mbps and the rest 15 channels are like 5 to 10 > Mbps each. Something is seriously wrong in my config. I have added > pf_ring.ko ( from 5.1.0 svn ) with transparent_mode=2 and ixgbe.ko > with ( MQ=32,32 RSS=32,32 ). Also tried with ( MQ=1,1 and RSS=0,0,0,0 > ), ( RSS=0,0,0,0 ) and plain insmod ixgbe.ko. Only thing I haven't > tried so far is ( just RSS=32,32,32,32 ). With plain ixgbe.ko insert > and pfcount I am getting around 800 Mbps initially but is steadily > falling off... > > Thanks ! > > Soumyendra > _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
