Ilya the ixgbe driver you are using is for 10 Gbit, so you're dropping at 10G not 1G. Can you please insert the ixgbe driver with as many queues as your CPUs? Why did you change the MTU?
Regards Luca On Mar 13, 2013, at 10:20 AM, Ilya Varivchenko <[email protected]> wrote: > Now I am testing nprobe + dna drivers > and I see traffic lost (>30%) on 1Gb speed! > > system: > ----------------------- > CPU: Intel(R) Xeon(R) CPU E31230 @ 3.20GHz (# of cores: 8) > RAM: 8GB > Ethernet controller: Intel Corporation 82599EB 10-Gigabit SFI/SFP+ Network > Connection (rev 01) > ----------------------- > > ----------------------- > pf_ring modules startup: > ----------------------- > insmod $PF_RING_PATH/pf_ring.ko transparent_mode=2 enable_ip_defrag=1 > min_num_slots=65536 enable_tx_capture=0 > > cat /proc/net/pf_ring/info > > PF_RING Version : 5.5.2 ($Revision: exported$) > Ring slots : 65536 > Slot version : 14 > Capture TX : No [RX only] > IP Defragment : Yes > Socket Mode : Standard > Transparent mode : No (mode 2) > Total rings : 8 > Total plugins : 0 > > ----------------------- > Intel dna drivers startup: > ----------------------- > insmod $DNA_DRIVER_PATH/ixgbe.ko MQ=1,1,1,1 RSS=16,16,16,16 mtu=16000 > InterruptThrottleRate=4000 > > cat /proc/net/pf_ring/dev/dna1/info > Name: dna1 > Index: 9 > Address: 00:E0:ED:22:27:E9 > Polling Mode: DNA > Type: Ethernet > Family: Intel ixgbe 82599 > Max # TX Queues: 16 > > ----------------------- > script that starts 8 instances of nprobe: > ----------------------- > > #!/bin/sh > > NPROBE="/bin/nprobe" > > for i in 0 1 2 3 4 5 6 7 > do > $NPROBE -i dna1@${i} -w 512000 --cpu-affinity ${i} -P /home/data/${i} -b2 > -G -F 900 \ > --flow-version 9 -T "%IPV4_SRC_ADDR %IPV4_DST_ADDR %IN_PKTS %IN_BYTES > %L4_SRC_PORT %L4_DST_PORT %PROTOCOL %FIRST_SWITCHED %LAST_SWITCHED" > > done > ----------------------- > > > in this configuration I have 30% of traffic loss on 1G channel > where is my mistake? > > I'm sure it's something that I'm doing wrong but what exactly it is? > > Thank you for any advice, > Ilya > > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
