07-19-2002
Thank you ...
[root@main /proc]# egrep "processor|MHz" /proc/cpuinfo
processor : 0
cpu MHz : 848.568
processor : 1
cpu MHz : 848.568
In this case I have 2 CPUs with 850 MHz each.
Witt
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LEARN ABOUT DEBIAN
trafgen
trafgen(8) netsniff-ng-toolkit trafgen(8)
NAME
trafgen - a high-performance zero-copy network packet generator
SYNOPSIS
trafgen [-d|--dev <netdev>][-c|--conf <file>][-J|--jumbo-support] [-x|--interactive][-n|--num <uint>][-r|--rand][-t|--gap <usec>]
[-S|--ring-size <size>][-k|--kernel-pull <usec>][-b|--bind-cpu <cpu>] [-B|--unbind-cpu
<cpu>][-H|--prio-high][-Q|--notouch-irq][-v|--version] [-h|--help]
DESCRIPTION
A high-performance network traffic generator that uses the zero-copy TX_RING for network I/O. For instance, on comodity Gigabit hardware up
to 1,488,095 pps 64 Byte pps have been achieved with trafgen.
OPTIONS
trafgen --dev eth0 --conf trafgen.txf --bind-cpu 0
Use packet configuration trafgen.txf, eth0 as transmission device and CPU0 for binding the process.
OPTIONS
-h|--help
Print help text and lists all options.
-v|--version
Print version.
-d|--dev <netdev>
Device for transmission i.e., eth0.
-c|--conf <conf>
Path to packet configuration file.
-x|--interactive
Start trafgen in interactive mode.
-J|--jumbo-support
Support for 64KB Super Jumbo Frames
-n|--num <uint>
Number of packets to generate before exiting. 0 means forever until SIGINT.
-r|--rand
Randomize packet selection process instead of round-robin.
-t|--gap <uint>
Interpacket gap in microseconds.
-S|--ring-size <size>
Manually set ring size to <size>: mmap space in KB/MB/GB.
-k|--kernel-pull <uint>
Kernel pull from user interval in microseconds. Default value is 10 microseconds.
-b|--bind-cpu <cpu>
Bind to specific CPU (or CPU-range).
-B|--unbind-cpu <cpu>
Forbid to use specific CPU (or CPU-range).
-H|--prio-high
Make this high priority process.
-Q|--notouch-irq
Do not touch IRQ CPU affinity of NIC.
EXAMPLES
Generate traffic defined in trafgen.txf on eth0 using CPU 0
trafgen --dev eth0 --conf trafgen.txf --bind-cpu 0
Generate traffic on eth0 using CPU 0, wait 100 us between packets
trafgen --dev eth0 --conf trafgen.txf --bind-cpu 0 --gap 100
Generate 100,000 packet on eth0 using CPU 0
trafgen --dev eth0 --conf trafgen.txf --bind-cpu 0 --num 100000
AUTHOR
Written by Daniel Borkmann <daniel@netsniff-ng.org>
DOCUMENTATION
Documentation by Emmanuel Roullit <emmanuel@netsniff-ng.org>
BUGS
Please report bugs to <bugs@netsniff-ng.org>
2012-06-29 trafgen(8)