Thanks for the suggestion. Here is the output of ifpps. It shows the kernel. I didn't do any tunning on this system.
3.16.0-23-generic, x86_64, eth0 (e1000e 100Mbit/s link:yes), t=1000ms, cpus=4/ 4 rx: 0.000 MiB/t 0 pkts/t 0 drops/t 0 err tx: 9.446 MiB/t 128636 pkts/t 0 drops/t 0 err ors/t rx: 0.000 MiB 0 pkts 0 drops 0 err ortx: 883.624 MiB 12033079 pkts 0 drops 0 err ors sys: 726 cs/t 143 procs 5 running 0 iow ait mem: 3833M total 568M used 348M active 121M ina ctswap: 3971M total 0M used 0M cached cpu3 +: 6.9% usr/t 93.1% sys/t 0.0% idl/t 0.0% iow /tcpu1 |: 5.0% usr/t 95.0% sys/t 0.0% idl/t 0.0% iow /tcpu0 |: 5.3% usr/t 94.7% sys/t 0.0% idl/t 0.0% iow /tcpu2 -: 5.1% usr/t 94.9% sys/t 0.0% idl/t 0.0% iow /tavg: 5.4% 94.6% 0.0% 0.0% cpu0 +: 4012 irqs/t 4012 sirq rx/t 4012 sirq tcpu3 |: 0 irqs/t 1 sirq rx/t 0 sir On Monday, June 8, 2015 at 4:55:07 PM UTC-5, Daniel Borkmann wrote: > > On 06/08/2015 11:46 PM, Daniel Borkmann wrote: > > On 06/06/2015 01:05 AM, Perf Tech wrote: > >> I have a PC with 3 NICs (eth0 is Intel 82579LM NIC, eth1 is 82574L), > OS is > >> ubuntu 12.04 server. > >> I connected eth0 and eth1 with a ethernet cable and both ports are up. > >> > >> Trying to find out how fast trafgen(0.5.9-rc4) can send packets on this > >> system. > >> > >> # ./trafgen --dev eth0 --conf tmp2.txt --cpp > >> 4 packets to schedule > >> 292 bytes in total > >> Running! Hang up with ^C! > >> > >> > >> I am monitoring "ifconfig eth0" with a monitoring program that I have > used > > There's a tool in the netsniff-ng repo called ifpps, you might also want > to > check that out. > > >> many years, the issue is, trafgen is only sending > >> pcap at a rate 129000 packets/sec with data rate of 79Mbps. I had > >> expected it to be a long higher. > > > > What kernel and NIC driver do you use? Did you do any particular tuning > > settings? > > > > E.g. a starting point could be: > > > > > http://netoptimizer.blogspot.ch/2014/09/network-setup-for-accurate-nanosec.html > > > > > Also, if your config uses checksumming, it's done in trafgen in > software, > > so if you want to test a simple minimal config, you could use a static > buffer > > as a start. > > > >> > >> Did I run the command wrong? > >> > >> Thanks > >> > > > > -- You received this message because you are subscribed to the Google Groups "netsniff-ng" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
