original_kernel/samples/pktgen
Jesper Dangaard Brouer 05a14d5e17 pktgen: add benchmark script pktgen_bench_xmit_mode_netif_receive.sh
This script pktgen_bench_xmit_mode_netif_receive.sh is a benchmark
script, which can be used for benchmarking part of the network stack.
This can be used for performance improving or catching regression in
that area.

The script is developed for benchmarking ingress qdisc path, original
idea by Alexei Starovoitov.  This script don't really need any
hardware.  This is achieved via the recently introduced stack inject
feature "xmit_mode netif_receive". See commit 62f64aed62 ("pktgen:
introduce xmit_mode '<start_xmit|netif_receive>'").

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-22 23:59:17 -04:00
..
README.rst
functions.sh
parameters.sh
pktgen.conf-1-1-flows
pktgen.conf-1-1-ip6
pktgen.conf-1-1-ip6-rdos
pktgen.conf-1-1-rdos
pktgen.conf-1-2
pktgen_bench_xmit_mode_netif_receive.sh pktgen: add benchmark script pktgen_bench_xmit_mode_netif_receive.sh 2015-05-22 23:59:17 -04:00
pktgen_sample01_simple.sh
pktgen_sample02_multiqueue.sh
pktgen_sample03_burst_single_flow.sh

README.rst

Sample and benchmark scripts for pktgen (packet generator)
==========================================================
This directory contains some pktgen sample and benchmark scripts, that
can easily be copied and adjusted for your own use-case.

General doc is located in kernel: Documentation/networking/pktgen.txt

Helper include files
====================
This directory contains two helper shell files, that can be "included"
by shell source'ing.  Namely "functions.sh" and "parameters.sh".

Common parameters
-----------------
The parameters.sh file support easy and consistant parameter parsing
across the sample scripts.  Usage example is printed on errors::

 Usage: ./pktgen_sample01_simple.sh [-vx] -i ethX
  -i : ($DEV)       output interface/device (required)
  -s : ($PKT_SIZE)  packet size
  -d : ($DEST_IP)   destination IP
  -m : ($DST_MAC)   destination MAC-addr
  -t : ($THREADS)   threads to start
  -c : ($SKB_CLONE) SKB clones send before alloc new SKB
  -b : ($BURST)     HW level bursting of SKBs
  -v : ($VERBOSE)   verbose
  -x : ($DEBUG)     debug

The global variable being set is also listed.  E.g. the required
interface/device parameter "-i" sets variable $DEV.

Common functions
----------------
The functions.sh file provides; Three different shell functions for
configuring the different components of pktgen: pg_ctrl(), pg_thread()
and pg_set().

These functions correspond to pktgens different components.
 * pg_ctrl()   control "pgctrl" (/proc/net/pktgen/pgctrl)
 * pg_thread() control the kernel threads and binding to devices
 * pg_set()    control setup of individual devices

See sample scripts for usage examples.