On 06/09/2015 12:01 AM, Perf Tech wrote:
Thanks for the suggestion. Here is the output of ifpps. It shows the
kernel. I didn't do any tunning on this system.
Ok, I thought you were talking about 1G, but your link is just 100Mbit.
Do you have anything running in the background of your system that is
listening on a packet socket?
cat /proc/net/packet
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
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